pkt-line: fix packet_read_line() to handle len < 0 errors

diff --git a/builtin/config.c b/builtin/config.c
index 05843a0f96e4dc0dbf9fbc7310039794b57947e7..4f49a0edb9071f4f63e97dfae902ff7a0aa51ee9 100644 (file)
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -527,9 +527,7 @@ int cmd_config(int argc, const char **argv, const char *prefix)
        else if (given_config_source.file) {
                if (!is_absolute_path(given_config_source.file) && prefix)
                        given_config_source.file =
-                               xstrdup(prefix_filename(prefix,
-                                                       strlen(prefix),
-                                                       given_config_source.file));
+                               prefix_filename(prefix, given_config_source.file);
        }
 
        if (respect_includes == -1)