Switch to c-style comments in a C file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155726 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/runtime/libprofile/CommonProfiling.c b/runtime/libprofile/CommonProfiling.c
index 13e3eb9..acc17ce 100644
--- a/runtime/libprofile/CommonProfiling.c
+++ b/runtime/libprofile/CommonProfiling.c
@@ -65,9 +65,10 @@
   for (Length = 0, i = 0; i != (unsigned)argc; ++i)
     Length += strlen(argv[i])+1;
 
-  // Defensively check for a zero length, even though this is unlikely
-  // to happen in practice.  This avoids calling malloc() below with a
-  // size of 0.
+  /* Defensively check for a zero length, even though this is unlikely
+   * to happen in practice.  This avoids calling malloc() below with a
+   * size of 0.
+   */
   if (Length == 0) {
     SavedArgs = 0;
     SavedArgsLength = 0;