Fix a syntax error "," #562

t/201-reason-children.t

@@ -12,7 +12,7 @@ my $ReasonChildren = {
     'ContentError'    => ['550 5.6.0 the headers in this message contain improperly-formatted binary content'],
     'ExceedLimit'     => ['5.2.3 Message too large'],
     'Expired'         => ['421 4.4.7 Delivery time expired'],
-    'FailedSTARTTLS'  => ['538 5.7.10 STARTTLS is required to send mail']
+    'FailedSTARTTLS'  => ['538 5.7.10 STARTTLS is required to send mail'],
     'Filtered'        => ['550 5.1.2 User reject'],
     'HasMoved'        => ['550 5.1.6 address neko@cat.cat has been replaced by neko@example.jp'],
     'HostUnknown'     => ['550 5.2.1 Host Unknown'],