ypmatch(1): reduce usage()

[Jason McIntyre]

hi.

diff to reduce verbosity in ypmatch(1) usage. before:

$ /usr/bin/ypmatch -Z
ypmatch: unknown option -- Z
usage: ypmatch [-kt] [-d domain] key ... mapname
       ypmatch -x
where
        mapname may be either a mapname or a nickname for a map.
        -k prints keys as well as values.
        -t inhibits map nickname translation.
        -x dumps the map nickname translation table.

after:

$ /usr/obj/usr.bin/ypmatch/ypmatch -Z
ypmatch: unknown option -- Z
usage: ypmatch [-kt] [-d domain] key ... mapname
       ypmatch -x

ok?
jmc

Index: usr.bin/ypmatch/ypmatch.c
===================================================================
RCS file: /cvs/src/usr.bin/ypmatch/ypmatch.c,v
retrieving revision 1.16
diff -u -p -r1.16 ypmatch.c
--- usr.bin/ypmatch/ypmatch.c   8 Feb 2015 23:40:35 -0000       1.16
+++ usr.bin/ypmatch/ypmatch.c   22 Jun 2021 12:44:03 -0000
@@ -61,12 +61,7 @@ usage(void)
        fprintf(stderr,
            "usage: ypmatch [-kt] [-d domain] key ... mapname\n"
            "       ypmatch -x\n");
-       fprintf(stderr,
-           "where\n"
-           "\tmapname may be either a mapname or a nickname for a map.\n"
-           "\t-k prints keys as well as values.\n"
-           "\t-t inhibits map nickname translation.\n"
-           "\t-x dumps the map nickname translation table.\n");
+
        exit(1);
 }