improved comments

Author: nebulark

clang/lib/CodeGen/BackendUtil.cpp

@@ -344,7 +344,7 @@ static std::string flattenClangCommandLine(ArrayRef<std::string> Args,
     if (Arg.starts_with("-object-file-name") || Arg == MainFilename) {
       continue;
     }
-    // Skip fmessage-length for reproduciability.
+    // Skip fmessage-length for reproducibility.
     if (Arg.starts_with("-fmessage-length")) {
       continue;
     }

llvm/include/llvm/MC/MCTargetOptions.h

@@ -95,10 +95,8 @@ class MCTargetOptions {
   std::string SplitDwarfFile;
   std::string AsSecureLogFile;
 
-  // This will be set as compiler path in LF_BUILDINFO
+  // Used for codeview debug info. These will be set as compiler path and commandline arguments in LF_BUILDINFO
   std::string Argv0;
-
-  // This will be set as commandline arguments in LF_BUILDINFO
   std::string CommandlineArgs;
 
   /// Additional paths to search for `.include` directives when using the