don't require 'openocd.cfg' to start

Starting the daemon with with just a bare "openocd" I saw:

	Can't find openocd.cfg

That's not an error; don't treat it as if it were.  There may
be an error later -- like, "no interface set up" -- but let
messages only report real errors, not fake ones.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/helper/configuration.c b/src/helper/configuration.c
index 007246c5..eedd8a1c 100644
--- a/src/helper/configuration.c
+++ b/src/helper/configuration.c
@@ -115,8 +115,10 @@ int parse_config_file(struct command_context *cmd_ctx)
 	int retval;
 	char **cfg;
 
-	if (!config_file_names)
-		add_config_command ("script openocd.cfg");
+	if (!config_file_names) {
+		command_run_line(cmd_ctx, "script openocd.cfg");
+		return ERROR_OK;
+	}
 
 	cfg = config_file_names;