several improvement and armonisation in filefct.sh, module auth and patch_snmp improved

modules/conf_ntp.sh

@@ -11,7 +11,7 @@
 #  * NTPSERVERS: list of NTP servers
 # ------------------------------------------------------------------------------
 
-export VER_conf_ntp="0.1.4"
+export VER_conf_ntp="0.1.5"
 export DEP_conf_ntp=""
 
 conf_ntp()
@@ -28,9 +28,9 @@ conf_ntp()
 
     prnt I "Installation du fichier de configuration de NTP."
     local dest="/etc/ntp.conf.work"
-    backupdist /etc/ntp.conf
-    tagfile $dest
-    installfile ntp.conf $dest
+    backup_dist /etc/ntp.conf
+    tag_file $dest
+    install_file ntp.conf $dest
     local line=""
     for srv in $NTP_SERVERS; do
         line="${line}server $srv iburst\n"
@@ -52,7 +52,7 @@ precheck_conf_ntp()
         prnt E "No configured NTP server!"
         die 151
     else
-        file_exists ntp.conf
+        file_must_exists ntp.conf
         prnt m "The NTP servers to be used will be:"
         for srv in $NTP_SERVERS; do
             prnt m "  * $srv"