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/ucmpdi2.c b/lib/ucmpdi2.c
index dec476f..4f0382d 100644
--- a/lib/ucmpdi2.c
+++ b/lib/ucmpdi2.c
@@ -1,21 +1,23 @@
-//===-- ucmpdi2.c - Implement __ucmpdi2 -----------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements __ucmpdi2 for the compiler_rt library.
-//
-//===----------------------------------------------------------------------===//
+/* ===-- ucmpdi2.c - Implement __ucmpdi2 -----------------------------------===
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ *
+ * This file implements __ucmpdi2 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
 __ucmpdi2(du_int a, du_int b)