user(8) fd fix

[Loganaden Velvindron]

Hi All,

>From NetBSD:
Close masterfd after reading from it. Found by cppcheck.


Index: src/usr.sbin/user/user.c
===================================================================
RCS file: /cvs/src/usr.sbin/user/user.c,v
retrieving revision 1.98
diff -u -p -r1.98 user.c
--- src/usr.sbin/user/user.c    23 Nov 2013 17:14:05 -0000      1.98
+++ src/usr.sbin/user/user.c    29 Dec 2013 19:55:36 -0000
@@ -1014,6 +1014,7 @@ adduser(char *login_name, user_t *up)
                pw_abort();
                err(EXIT_FAILURE, "read error on %s", _PATH_MASTERPASSWD);
        }
+       (void)close(masterfd);
        /* if no uid was specified, get next one in [low_uid..high_uid] range */
        sync_uid_gid = (strcmp(up->u_primgrp, "=uid") == 0);
        if (up->u_uid == UID_MAX) {