Backup key check

src/freedombone-pass

     key="$1"
 
     case $key in
-        --help)
+        -h|--help)
             show_help
             ;;
         -u|--user|--username)
     shift
 done
 
-MASTER_PASSWORD=$(gpg -q --armor --export-secret-key 'backup key')
+get_backup_key_id
+MASTER_PASSWORD=$(gpg -q --armor --export-secret-key $MY_BACKUP_KEY_ID)
 
 if [ ! $CURR_USERNAME ]; then
     echo $'No username given'