sgsn_main: in -h, print default config file
diff --git a/openbsc/src/gprs/sgsn_main.c b/openbsc/src/gprs/sgsn_main.c
index 176501a..811bdfb 100644
--- a/openbsc/src/gprs/sgsn_main.c
+++ b/openbsc/src/gprs/sgsn_main.c
@@ -174,7 +174,7 @@
printf(" -D --daemonize\tFork the process into a background daemon\n");
printf(" -d option --debug\tenable Debugging\n");
printf(" -s --disable-color\n");
- printf(" -c --config-file\tThe config file to use\n");
+ printf(" -c --config-file\tThe config file to use [%s]\n", sgsn->config_file);
printf(" -e --log-level number\tSet a global log level\n");
}