doc/pretty-formats: explain shortening of %gd

diff --git a/combine-diff.c b/combine-diff.c
index 0e1d4b0893ce0266a6d15f880bb6ad66eb2619fb..8f2313d5022326dc244fa8eba4a8640299ebeac8 100644 (file)
--- a/combine-diff.c
+++ b/combine-diff.c
@@ -1005,8 +1005,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
                        struct strbuf buf = STRBUF_INIT;
 
                        if (strbuf_readlink(&buf, elem->path, st.st_size) < 0) {
-                               error("readlink(%s): %s", elem->path,
-                                     strerror(errno));
+                               error_errno("readlink(%s)", elem->path);
                                return;
                        }
                        result_size = buf.len;