login: cleanup -f in usage() and comments

Let's remove unnecessary comment and "second authentication" from
usage().

Addresses: https://github.com/karelzak/util-linux/issues/1053
Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/login-utils/login.c b/login-utils/login.c
index 4be8bcfaf3a3c30bc97111b96cf270edb6bf93b6..b3aab9107111e65a49ea3fc0defa360b32acb80a 100644 (file)
--- a/login-utils/login.c
+++ b/login-utils/login.c
@@ -1178,7 +1178,7 @@ static void __attribute__((__noreturn__)) usage(void)
 
        fputs(USAGE_OPTIONS, stdout);
        puts(_(" -p             do not destroy the environment"));
-       puts(_(" -f             skip a second login authentication"));
+       puts(_(" -f             skip a login authentication"));
        puts(_(" -h <host>      hostname to be used for utmp logging"));
        puts(_(" -H             suppress hostname in the login prompt"));
        printf("     --help     %s\n", USAGE_OPTSTR_HELP);
@@ -1240,12 +1240,6 @@ int main(int argc, char **argv)
        setpriority(PRIO_PROCESS, 0, 0);
        initproctitle(argc, argv);
 
-       /*
-        * -p is used by getty to tell login not to destroy the environment
-        * -f is used to skip a second login authentication
-        * -h is used by other servers to pass the name of the remote
-        *    host to login so that it may be placed in utmp and wtmp
-        */
        while ((c = getopt_long(argc, argv, "fHh:pV", longopts, NULL)) != -1)
                switch (c) {
                case 'f':