10130 smatch fixes for usr/src/cmd/fm

@@ -21,10 +21,14 @@
 
 /*
  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  */
 
+/*
+ * Copyright (c) 2018, Joyent, Inc.
+ */
+
 #include <sys/fm/protocol.h>
 #include <fm/fmd_snmp.h>
 #include <fm/fmd_msg.h>
 #include <fm/libfmevent.h>
 #include <net-snmp/net-snmp-config.h>

@@ -575,11 +579,11 @@
                         case 'R':
                                 nhdl->nh_rootdir = strdup(optarg);
                                 break;
                         default:
                                 free(nhdl);
-                                return (usage(nhdl->nh_pname));
+                                return (usage(argv[0]));
                         }
                 }
         }
 
         /*