Fix issues with non existing user (hestiacp#1319)

Author: jaapmarcus

bin/v-restore-user

@@ -136,8 +136,10 @@ if [ "$create_user" = 'yes' ]; then
 
     # Add check if user already exists as Linux User
     getent passwd $user > /dev/null 2&>1
-    check_result "$E_EXISTS" "User already exists"  
-
+    if [ "$?" == 0 ]; then
+        check_result "$E_EXISTS" "User already exists"  
+    fi 
+    
     echo "-- USER --" |tee $tmpdir/restore.log
     echo -e "$(date "+%F %T") $user" |tee -a $tmpdir/restore.log