password utils: improve --help, make DEFAULT_PASSWD_ALGO visible if CHPASSWD

Was:
    $ cryptpw --help
    ...
    Print crypt(3) hashed PASSWORD

        -P,--password-fd=N	Read password from fd N
        -m,--method=TYPE	Encryption method
        -S,--salt=SALT

User: "What methods exist? which one os default?"

Now:
    Print crypt(3) hashed PASSWORD

        -P,--password-fd N	Read password from fd N
        -m,--method TYPE	des,md5,sha256/512 (default des)
        -S,--salt SALT

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/loginutils/passwd.c b/loginutils/passwd.c
index 52b66ca50..b7b7423fd 100644
--- a/loginutils/passwd.c
+++ b/loginutils/passwd.c
@@ -32,7 +32,7 @@
 //usage:#define passwd_full_usage "\n\n"
 //usage:       "Change USER's password (default: current user)"
 //usage:     "\n"
-//usage:     "\n        -a ALG  Encryption method"
+//usage:     "\n        -a ALG  "CRYPT_METHODS_HELP_STR
 //usage:     "\n        -d      Set password to ''"
 //usage:     "\n        -l      Lock (disable) account"
 //usage:     "\n        -u      Unlock (enable) account"