t/t7003-filter-branch.sh: use the $( ... ) construct for command substitution

diff --git a/cache.h b/cache.h
index c3b196ef0b1a4bf4255f09f3ec592db931536dd6..c63fcc113a6e511a53f0170a07bd5dbbf12cc120 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -831,6 +831,7 @@ extern const char *find_unique_abbrev(const unsigned char *sha1, int len);
 extern int find_unique_abbrev_r(char *hex, const unsigned char *sha1, int len);
 
 extern const unsigned char null_sha1[GIT_SHA1_RAWSZ];
+extern const struct object_id null_oid;
 
 static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
 {
@@ -1048,6 +1049,9 @@ static inline int has_sha1_file(const unsigned char *sha1)
        return has_sha1_file_with_flags(sha1, 0);
 }
 
+/* Same as the above, except for struct object_id. */
+extern int has_object_file(const struct object_id *oid);
+
 /*
  * Return true iff an alternate object database has a loose object
  * with the specified name.  This function does not respect replace