[llvm] Avoid 'raw_string_ostream::str' (NFC)

Since `raw_string_ostream` doesn't own the string buffer, it is
desirable (in terms of memory safety) for users to directly reference
the string buffer rather than use `raw_string_ostream::str()`.

Work towards TODO comment to remove `raw_string_ostream::str()`.

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Support/LockFileManager.cpp b/llvm/lib/Support/LockFileManager.cpp
index 3169aa2..ea040cc 100644
--- a/llvm/lib/Support/LockFileManager.cpp
+++ b/llvm/lib/Support/LockFileManager.cpp
@@ -228,7 +228,7 @@ LockFileManager::LockFileManager(StringRef FileName)
       std::string S("failed to create link ");
       raw_string_ostream OSS(S);
       OSS << LockFileName.str() << " to " << UniqueLockFileName.str();
-      setError(EC, OSS.str());
+      setError(EC, S);
       return;
     }
 
@@ -274,7 +274,7 @@ std::string LockFileManager::getErrorMessage() const {
     raw_string_ostream OSS(Str);
     if (!ErrCodeMsg.empty())
       OSS << ": " << ErrCodeMsg;
-    return OSS.str();
+    return Str;
   }
   return "";
 }