Merge branch 'jl/zlib-restore-nul-termination'

Make zlib inflate codepath more robust against versions of zlib
that clobber unused portion of outbuf.

* jl/zlib-restore-nul-termination:
  packfile: correct zlib buffer handling

packfile.c

@@ -1454,6 +1454,9 @@ static void *unpack_compressed_entry(struct packed_git *p,
 		return NULL;
 	}
+	/* versions of zlib can clobber unconsumed portion of outbuf */
+	buffer[size] = '\0';
+
 	return buffer;
 }