ftpserver.pl: Reworked custom reply handling code

1) To fix issues with IMAP custom replies
2) So initial space is not required in IMAP display text
3) To be more readable and understandable

tests/ftpserver.pl

@@ -3108,34 +3108,33 @@ while(1) {
             }
         }
 
-        my $text;
-        $text = $customreply{$FTPCMD};
-        my $fake = $text;
+        my $check = 1; # no response yet
 
+        # See if there is a custom reply for our command
+        my $text = $customreply{$FTPCMD};
         if($text && ($text ne "")) {
             if($customcount{$FTPCMD} && (!--$customcount{$FTPCMD})) {
                 # used enough number of times, now blank the customreply
                 $customreply{$FTPCMD}="";
             }
+
+            sendcontrol "$text\r\n";
+            $check = 0;
         }
         else {
+            # See if there is any display text for our command
             $text = $displaytext{$FTPCMD};
-        }
+            if($text && ($text ne "")) {
+                if($proto eq 'imap') {
+                    sendcontrol "$cmdid $text\r\n";
+                }
+                else {
+                    sendcontrol "$text\r\n";
+                }
 
-        my $check;
-        if($text && ($text ne "")) {
-            if(($cmdid) && ($cmdid ne "") && ($fake) && ($fake ne "")) {
-                sendcontrol "$cmdid$text\r\n";
+                $check = 0;
             }
-            else {
-                sendcontrol "$text\r\n";
-            }
-        }
-        else {
-            $check=1; # no response yet
-        }
 
-        unless($fake && ($fake ne "")) {
             # only perform this if we're not faking a reply
             my $func = $commandfunc{$FTPCMD};
             if($func) {