Add doxygen comment to clang_getClangVersion().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94311 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
index ef17ed1..aeaed58 100644
--- a/include/clang-c/Index.h
+++ b/include/clang-c/Index.h
@@ -1252,7 +1252,11 @@
  *
  * @{
  */
-  
+
+/**
+ * \brief Return a version string, suitable for showing to a user, but not
+ *        intended to be parsed (the format is not guaranteed to be stable).
+ */
 CINDEX_LINKAGE const char *clang_getClangVersion();
 
 /**