Fixed typo in help output.

src/sbbs3/smbutil.c

@@ -117,7 +117,7 @@ char *usage=
 "       a    = always pack msg base (disable compression analysis)\n"
 "       i    = ignore dupes (do not store CRCs or search for duplicate hashes)\n"
 "       d    = use default values (no prompt) for to, from, and subject\n"
-"       o    = print errors on stdout (instead of err_fp)\n"
+"       o    = print errors on stdout (instead of stderr)\n"
 "       t<s> = set 'to' user name for imported message\n"
 "       n<s> = set 'to' netmail address for imported message\n"
 "       u<s> = set 'to' user number for imported message\n"