Code style and Readability fixes. Credit to Craig van Vliet.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@78403 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/cmpdi2.c b/lib/cmpdi2.c
index f398ea2..ece48ae 100644
--- a/lib/cmpdi2.c
+++ b/lib/cmpdi2.c
@@ -1,21 +1,23 @@
-//===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements __cmpdi2 for the compiler_rt library.
-//
-//===----------------------------------------------------------------------===//
+/* ===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ * 
+ * This file implements __cmpdi2 for the compiler_rt library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
 
 #include "int_lib.h"
 
-// Returns:  if (a <  b) returns 0
-//           if (a == b) returns 1
-//           if (a >  b) returns 2
+/* Returns:  if (a <  b) returns 0
+*           if (a == b) returns 1
+*           if (a >  b) returns 2
+*/
 
 si_int
 __cmpdi2(di_int a, di_int b)