[gnome-builder] clang: plug leak of filename when indexing

[Christian Hergert <chergert src gnome org>]

commit 85aa9db7b44432b9a7fa31426cb0b43cc35966f4
Author: Christian Hergert <chergert redhat com>
Date:   Sat Jan 13 04:06:50 2018 -0800

    clang: plug leak of filename when indexing

 src/plugins/clang/ide-clang-code-index-entries.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/plugins/clang/ide-clang-code-index-entries.c 
b/src/plugins/clang/ide-clang-code-index-entries.c
index 232cf95fb..ddedce022 100644
--- a/src/plugins/clang/ide-clang-code-index-entries.c
+++ b/src/plugins/clang/ide-clang-code-index-entries.c
@@ -71,7 +71,7 @@ visitor (CXCursor     cursor,
   enum CXCursorKind cursor_kind;
   CXSourceLocation location;
   CXFile file;
-  CXString cx_file_name;
+  g_auto(CXString) cx_file_name = {0};
   const char *file_name;
   CXCursor *child_cursor;