Fix "commas at the end of enumerator lists are a C99-specific"

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@370141 91177308-0d34-0410-b5e6-96231b3b80d8

include/clang-c/Index.h

@@ -1361,7 +1361,7 @@ enum CXTranslationUnit_Flags {
   /**
    * Tells the preprocessor not to skip excluded conditional blocks.
    */
-  CXTranslationUnit_RetainExcludedConditionalBlocks = 0x8000,
+  CXTranslationUnit_RetainExcludedConditionalBlocks = 0x8000
 };
 
 /**