slightly better auto gc message

diff --git a/bundle.c b/bundle.c
index 9b9b9166df05e984dc571462f333aeaee9cdcd23..be204d8a228ab5218a603cdcf3ebd17e95ad8d90 100644 (file)
--- a/bundle.c
+++ b/bundle.c
@@ -48,7 +48,7 @@ int read_bundle_header(const char *path, struct bundle_header *header)
                        : &header->references;
                char delim;
 
-               if (buffer[len - 1] == '\n')
+               if (len && buffer[len - 1] == '\n')
                        buffer[len - 1] = '\0';
                if (get_sha1_hex(buffer + offset, sha1)) {
                        warning("unrecognized header: %s", buffer);