libstdc++: Fix typos in comments in tests

libstdc++-v3/ChangeLog:

	* testsuite/20_util/optional/monadic/and_then.cc: Fix typo.
	* testsuite/20_util/optional/monadic/transform.cc: Likewise.
	* testsuite/22_locale/codecvt/always_noconv/char/1.cc: Likewise.
	* testsuite/22_locale/codecvt/encoding/char/1.cc: Likewise.
	* testsuite/22_locale/codecvt/in/char/1.cc: Likewise.
	* testsuite/22_locale/codecvt/max_length/char/1.cc: Likewise.
	* testsuite/22_locale/codecvt/out/char/1.cc: Likewise.
	* testsuite/22_locale/codecvt/unshift/char/1.cc: Likewise.

8 files changed, 22 insertions, 22 deletions

diff --git a/libstdc++-v3/testsuite/20_util/optional/monadic/and_then.cc b/libstdc++-v3/testsuite/20_util/optional/monadic/and_then.cc
index f69ab95..7cbec33 100644
--- a/libstdc++-v3/testsuite/20_util/optional/monadic/and_then.cc
+++ b/libstdc++-v3/testsuite/20_util/optional/monadic/and_then.cc
@@ -118,7 +118,7 @@ void f(int&) { }
 void
 test_unconstrained()
 {
-  // PR libstc++/102863 - Optional monadic ops should not be constrained
+  // PR libstdc++/102863 - Optional monadic ops should not be constrained
   std::optional<int> x;
   auto answer = x.and_then([](auto& y) { f(y); return std::optional<int>{42}; });
   VERIFY( !answer );
diff --git a/libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc b/libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc
index 356c94d..b08837e 100644
--- a/libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc
+++ b/libstdc++-v3/testsuite/20_util/optional/monadic/transform.cc
@@ -137,7 +137,7 @@ void f(int&) { }
 void
 test_unconstrained()
 {
-  // PR libstc++/102863 - Optional monadic ops should not be constrained
+  // PR libstdc++/102863 - Optional monadic ops should not be constrained
   std::optional<int> x;
   auto answer = x.transform([](auto& y) { f(y); return 42; });
   VERIFY( !answer );
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/always_noconv/char/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/always_noconv/char/1.cc
index 9431c90..c169073 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/always_noconv/char/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/always_noconv/char/1.cc
@@ -36,9 +36,9 @@ void test01()
   char*                 c_ref = new char[size];
 
   locale 		loc = locale::classic();
-  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc); 
+  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc);
 
-  // According to the resolution of DR19 (see also libstd++/9168), in
+  // According to the resolution of DR19 (see also libstdc++/9168), in
   // case of degenerate conversion ('noconv'), "there are no changes to
   // the values in [to, to_limit)."
   memset(c_ref, 'X', size);
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/encoding/char/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/encoding/char/1.cc
index a8e8652..f5e0541 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/encoding/char/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/encoding/char/1.cc
@@ -36,9 +36,9 @@ void test01()
   char*                 c_ref = new char[size];
 
   locale 		loc = locale::classic();
-  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc); 
+  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc);
 
-  // According to the resolution of DR19 (see also libstd++/9168), in
+  // According to the resolution of DR19 (see also libstdc++/9168), in
   // case of degenerate conversion ('noconv'), "there are no changes to
   // the values in [to, to_limit)."
   memset(c_ref, 'X', size);
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/in/char/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/in/char/1.cc
index 42bb7bc..299c62a 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/in/char/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/in/char/1.cc
@@ -40,19 +40,19 @@ void test01()
 
   locale 		loc = locale::classic();
   c_codecvt::state_type state;
-  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc); 
+  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc);
 
-  // According to the resolution of DR19 (see also libstd++/9168), in
+  // According to the resolution of DR19 (see also libstdc++/9168), in
   // case of degenerate conversion ('noconv'), "there are no changes to
   // the values in [to, to_limit)."
   memset(c_ref, 'X', size);
 
   // in
   memset(c_arr, 'X', size);
-  result r1 = cvt->in(state, c_lit, c_lit + size, from_next, 
+  result r1 = cvt->in(state, c_lit, c_lit + size, from_next,
 		      c_arr, c_arr + size, to_next);
   VERIFY( r1 == codecvt_base::noconv );
-  VERIFY( !memcmp(c_arr, c_ref, size) ); 
+  VERIFY( !memcmp(c_arr, c_ref, size) );
   VERIFY( from_next == c_lit );
   VERIFY( to_next == c_arr );
 
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/max_length/char/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/max_length/char/1.cc
index 0236ac3..5aec137 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/max_length/char/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/max_length/char/1.cc
@@ -35,9 +35,9 @@ void test01()
   char* 		c_arr = new char[size];
   char*                 c_ref = new char[size];
   locale 		loc = locale::classic();
-  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc); 
+  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc);
 
-  // According to the resolution of DR19 (see also libstd++/9168), in
+  // According to the resolution of DR19 (see also libstdc++/9168), in
   // case of degenerate conversion ('noconv'), "there are no changes to
   // the values in [to, to_limit)."
   memset(c_ref, 'X', size);
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/out/char/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/out/char/1.cc
index 5733df6..a2224c7 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/out/char/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/out/char/1.cc
@@ -40,19 +40,19 @@ void test01()
 
   locale 		loc = locale::classic();
   c_codecvt::state_type state;
-  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc); 
+  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc);
 
-  // According to the resolution of DR19 (see also libstd++/9168), in
+  // According to the resolution of DR19 (see also libstdc++/9168), in
   // case of degenerate conversion ('noconv'), "there are no changes to
   // the values in [to, to_limit)."
   memset(c_ref, 'X', size);
 
   // out
   memset(c_arr, 'X', size);
-  result r2 = cvt->out(state, c_lit, c_lit + size, from_next, 
+  result r2 = cvt->out(state, c_lit, c_lit + size, from_next,
 		       c_arr, c_arr + size, to_next);
   VERIFY( r2 == codecvt_base::noconv );
-  VERIFY( !memcmp(c_arr, c_ref, size) ); 
+  VERIFY( !memcmp(c_arr, c_ref, size) );
   VERIFY( from_next == c_lit );
   VERIFY( to_next == c_arr );
 
diff --git a/libstdc++-v3/testsuite/22_locale/codecvt/unshift/char/1.cc b/libstdc++-v3/testsuite/22_locale/codecvt/unshift/char/1.cc
index 828fcec..28745ce 100644
--- a/libstdc++-v3/testsuite/22_locale/codecvt/unshift/char/1.cc
+++ b/libstdc++-v3/testsuite/22_locale/codecvt/unshift/char/1.cc
@@ -40,28 +40,28 @@ void test01()
 
   locale 		loc = locale::classic();
   c_codecvt::state_type state;
-  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc); 
+  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc);
 
-  // According to the resolution of DR19 (see also libstd++/9168), in
+  // According to the resolution of DR19 (see also libstdc++/9168), in
   // case of degenerate conversion ('noconv'), "there are no changes to
   // the values in [to, to_limit)."
   memset(c_ref, 'X', size);
 
   // in
   memset(c_arr, 'X', size);
-  result r1 = cvt->in(state, c_lit, c_lit + size, from_next, 
+  result r1 = cvt->in(state, c_lit, c_lit + size, from_next,
 		      c_arr, c_arr + size, to_next);
   VERIFY( r1 == codecvt_base::noconv );
-  VERIFY( !memcmp(c_arr, c_ref, size) ); 
+  VERIFY( !memcmp(c_arr, c_ref, size) );
   VERIFY( from_next == c_lit );
   VERIFY( to_next == c_arr );
 
   // out
   memset(c_arr, 'X', size);
-  result r2 = cvt->out(state, c_lit, c_lit + size, from_next, 
+  result r2 = cvt->out(state, c_lit, c_lit + size, from_next,
 		       c_arr, c_arr + size, to_next);
   VERIFY( r2 == codecvt_base::noconv );
-  VERIFY( !memcmp(c_arr, c_ref, size) ); 
+  VERIFY( !memcmp(c_arr, c_ref, size) );
   VERIFY( from_next == c_lit );
   VERIFY( to_next == c_arr );