sha1_name.c: teach get_short_sha1() a commit-only option

diff --git a/cache.h b/cache.h
index 1bafa45a7ec65a5df1c6bf79f8706faa23bea961..2d91dbd958bd78b7580b535a8a5249470aa9acc0 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -812,6 +812,7 @@ struct object_context {
 };
 
 #define GET_SHA1_QUIETLY 01
+#define GET_SHA1_COMMIT 02
 
 extern int get_sha1(const char *str, unsigned char *sha1);
 extern void maybe_die_on_misspelt_object_name(const char *name, const char *prefix);