hook.c: add a hook_exists() wrapper and use it in bugreport.c

Add a boolean version of the find_hook() function for those callers
who are only interested in checking whether the hook exists, not what
the path to it is.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/hook.h b/hook.h
index 68624f1..6aa36fc 100644
--- a/hook.h
+++ b/hook.h
@@ -8,4 +8,9 @@
  */
 const char *find_hook(const char *name);
 
+/**
+ * A boolean version of find_hook()
+ */
+int hook_exists(const char *hookname);
+
 #endif