From 4f181c51535c1237b2582feca49ecd39f657463f Mon Sep 17 00:00:00 2001
From: Matt Simerson <matt@tnpi.net>
Date: Wed, 14 Nov 2012 17:37:38 -0500
Subject: [PATCH] SMTP.pm: fixed invalid operator

which produced this warning:
   Useless use of string eq in void context at lib/Qpsmtpd/SMTP.pm line 639.
---
 lib/Qpsmtpd/SMTP.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Qpsmtpd/SMTP.pm b/lib/Qpsmtpd/SMTP.pm
index f1b48db..fd6dcf4 100644
--- a/lib/Qpsmtpd/SMTP.pm
+++ b/lib/Qpsmtpd/SMTP.pm
@@ -636,7 +636,7 @@ sub data_respond {
   while (defined($_ = $self->getline($timeout))) {
     if ( $_ eq ".\r\n" ) {
         $complete++;
-        $_ eq '';
+        $_ = '';
     };
     $i++;