attr: tighten const correctness with git_attr and match_attr

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/attr.h b/attr.h
index 5aaf55c3e3..abebbc19c9 100644
--- a/attr.h
+++ b/attr.h
@@ -11,7 +11,7 @@ struct all_attrs_item;
  * Given a string, return the gitattribute object that
  * corresponds to it.
  */
-struct git_attr *git_attr(const char *);
+const struct git_attr *git_attr(const char *);
 
 /* Internal use */
 extern const char git_attr__true[];