Cosmetic improvements to this option.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11331 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ProfileInfoLoaderPass.cpp b/lib/Analysis/ProfileInfoLoaderPass.cpp
index be95669..dab4b0e 100644
--- a/lib/Analysis/ProfileInfoLoaderPass.cpp
+++ b/lib/Analysis/ProfileInfoLoaderPass.cpp
@@ -21,7 +21,8 @@
 namespace {
   cl::opt<std::string>
   ProfileInfoFilename("profile-info-file", cl::init("llvmprof.out"),
-                      cl::desc(""));
+                      cl::value_desc("filename"),
+                      cl::desc("Profile file loaded by -profile-loader"));
 
   class LoaderPass : public Pass, public ProfileInfo {
     std::string Filename;