* runtest.exp: Whitespace, comment and typo fixes.

	* lib/dejagnu.exp: Likewise.
	* lib/remote.exp: Likewise.
	* lib/utils.exp: Likewise.

5 files changed, 26 insertions, 14 deletions

diff --git a/ChangeLog b/ChangeLog
index 4ad5b02..2ea424b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2016-03-21  Ben Elliston  <bje@gnu.org>
 
+	* runtest.exp: Whitespace, comment and typo fixes.
+	* lib/dejagnu.exp: Likewise.
+	* lib/remote.exp: Likewise.
+	* lib/utils.exp: Likewise.
+
+2016-03-21  Ben Elliston  <bje@gnu.org>
+
 	* baseboards/mcore-moto-sim.exp: Remove old FIXME comment.
 	* baseboards/mmixware-sim.exp: Likewise.
 	* config/sim.exp: Likewise.
diff --git a/lib/dejagnu.exp b/lib/dejagnu.exp
index 89016b4..732bdf9 100644
--- a/lib/dejagnu.exp
+++ b/lib/dejagnu.exp
@@ -83,7 +83,7 @@ proc host_compile {compline} {
     # prune common warnings and other stuff we can safely ignore
     set comp_output [prune_warnings $comp_output]
 
-    # Trim multiple CR/LF pairs out to keep things consistant
+    # Trim multiple CR/LF pairs out to keep things consistent
     regsub "^\[\r\n\]+" $comp_output "" comp_output
 
     # if we got a compiler error, log it
diff --git a/lib/remote.exp b/lib/remote.exp
index 887867c..e0d9d18 100644
--- a/lib/remote.exp
+++ b/lib/remote.exp
@@ -57,8 +57,7 @@ proc remote_raw_open { args } {
 }
 
 # Close a spawn ID, and wait for the process to die.  If PID is not
-# -1, then if the process doesn't exit gracefully promptly, we kill
-# it.
+# -1, then the process is killed if it doesn't exit gracefully.
 #
 proc close_wait_program { program_id pid {wres_varname ""} } {
     if {$wres_varname != "" } {
@@ -76,7 +75,7 @@ proc close_wait_program { program_id pid {wres_varname ""} } {
 	set pgid "-$pid"
 	# Send SIGINT to give the program a better chance to interrupt
 	# whatever it might be doing and react to stdin closing.
-	# E.g., in case of GDB, this should get it back to the prompt.
+	# eg, in case of GDB, this should get it back to the prompt.
 	exec sh -c "exec > /dev/null 2>&1 && (kill -2 $pgid || kill -2 $pid)"
 
 	# If the program doesn't exit gracefully when stdin closes,
@@ -158,6 +157,7 @@ proc local_exec { commandline inp outp timeout } {
 	    set result2 5
 	}
     } else {
+	# Use a command pipeline with open.
 	if { $inp != "" } {
 	    set inp "< $inp"
 	    set mode "r"
@@ -217,7 +217,7 @@ proc local_exec { commandline inp outp timeout } {
 	    exp_continue -continue_timer
 	}
 	timeout {
-	    warning "program timed out."
+	    warning "program timed out"
 	}
 	eof {
 	    set got_eof 1
diff --git a/lib/utils.exp b/lib/utils.exp
index 505ad18..e2a5040 100644
--- a/lib/utils.exp
+++ b/lib/utils.exp
@@ -23,6 +23,7 @@
 # This file is sourced by runtest.exp, so they are usable by any test
 # script.
 
+
 # Gets the directories in a directory, or in a directory tree.
 #     args: the first is the dir to look in, the next
 #         is the pattern to match. It
@@ -86,6 +87,7 @@ proc getdirs { args } {
     }
 }
 
+
 # Finds paths of all non-directory files, recursively, whose names match
 # a pattern.  Certain directory name are not searched (see proc getdirs).
 #     rootdir - search in this directory and its subdirectories, recursively.
@@ -115,6 +117,7 @@ proc find { rootdir pattern } {
     return $files
 }
 
+
 # Search the path for a file. This is basically a version of the BSD
 # Unix which(1) utility. This procedure depends on the shell
 # environment variable $PATH. It returns 0 if $PATH does not exist or
@@ -250,10 +253,11 @@ proc runtest_file_p { runtests testcase } {
 }
 
 
-# Compares two files line-by-line
-#     returns 1 it the files match,
-#     returns 0 if there was a file error,
-#     returns -1 if they didn't match.
+# Compares two files line-by-line just like the Unix diff(1) utility.
+#
+# Returns 1 if the files match,
+#         0 if there was a file error,
+#         -1 if they did not match.
 #
 proc diff { file_1 file_2 } {
     set eof -1
@@ -296,6 +300,7 @@ proc diff { file_1 file_2 } {
 	}
     }
     close ${file_b}
+
     for { set i 0 } { $i < [llength $list_a] } { incr i } {
 	set line_a [lindex ${list_a} ${i}]
 	set line_b [lindex ${list_b} ${i}]
@@ -315,10 +320,10 @@ proc diff { file_1 file_2 } {
 	verbose "Files are the same" 2
 	set differences 1
     }
-    return ${differences}
+    return $differences
 }
 
-#
+
 # Set an environment variable
 #
 proc setenv { var val } {
@@ -333,6 +338,7 @@ proc unsetenv { var } {
     unset env($var)
 }
 
+
 # Get a value from an environment variable
 #
 proc getenv { var } {
diff --git a/runtest.exp b/runtest.exp
index e53afdf..d435db8 100644
--- a/runtest.exp
+++ b/runtest.exp
@@ -585,7 +585,7 @@ proc lookfor_file { dir name } {
 #
 # If there a multiple files with the same name, stop after the first one found.
 # The order is first look in the install dir, then in a parallel dir in the
-# source tree, (up one or two levels), then in the current dir.
+# source tree (up one or two levels), then in the current dir.
 #
 proc load_lib { file } {
     global verbose libdir libdirs srcdir base_dir execpath tool
@@ -683,7 +683,7 @@ unset arg_host_triplet arg_build_triplet
 # If the build machine type hasn't been specified by now, use config.guess.
 #
 
-if {[expr  { $build_triplet == ""  &&  $host_triplet == ""} ]} {
+if {[expr {$build_triplet == "" && $host_triplet == ""}]} {
     # find config.guess
     foreach dir "$libdir $libdir/libexec $libdir/.. $execpath $srcdir $srcdir/.. $srcdir/../.." {
 	verbose "Looking for ${dir}/config.guess" 2
@@ -711,7 +711,6 @@ if {[expr  { $build_triplet == ""  &&  $host_triplet == ""} ]} {
     if { $host_triplet == "" } {
 	set host_triplet $build_triplet
     }
-
 }
 
 #