c-index-test.c: /* Use C style comment. */

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165797 91177308-0d34-0410-b5e6-96231b3b80d8

tools/c-index-test/c-index-test.c

@@ -2384,7 +2384,7 @@ static CXIdxClientFile index_importedASTFile(CXClientData client_data,
     printf(" | isImplicit: %d\n", info->isImplicit);
     clang_disposeString(name);
   } else {
-    // PCH file, the rest are not relevant.
+    /* PCH file, the rest are not relevant. */
     printf("\n");
   }