snmp(1): Fix mibree usage

[Martijn van Duren]

Probably not something many people will run into.

$ snmp mibtree -q
snmp: unknown option -- q
usage: snmp mibtree[-O fnS] [oid ...]
$ ./obj/snmp mibtree -q
snmp: unknown option -- q
usage: snmp mibtree [-O fnS] [oid ...]

mibtree is the only one not setting the usecommonopt.

OK?

martijn@

Index: snmpc.c
===================================================================
RCS file: /cvs/src/usr.bin/snmp/snmpc.c,v
retrieving revision 1.35
diff -u -p -r1.35 snmpc.c
--- snmpc.c     8 Aug 2021 13:41:26 -0000       1.35
+++ snmpc.c     11 Aug 2021 14:47:51 -0000
@@ -1572,7 +1572,7 @@ usage(void)
                    "            [-E ctxengineid] [-K localpriv] [-k localauth] 
[-l seclevel]\n"
                    "            [-n ctxname] [-O afnqvxSQ] [-r retries] [-t 
timeout] [-u user]\n"
                    "            [-v version] [-X privpass] [-x cipher] [-Z 
boots,time]\n"
-                   "            " : "",
+                   "            " : " ",
                    snmp_app->usage == NULL ? "" : snmp_app->usage);
                exit(1);
        }