=== modified file 'plugin-runner.c'
--- plugin-runner.c	2018-02-12 14:54:58 +0000
+++ plugin-runner.c	2018-02-22 18:15:57 +0000
@@ -583,6 +583,7 @@
       if(arg[0] == '\0'){
 	break;
       }
+      /* FALLTHROUGH */
     default:
       return ARGP_ERR_UNKNOWN;
     }