fix ADDR message for undefined $dom

diff --git a/service b/service
index d9ca7e3bf5ae26867088d42b9dab1cf35c7283ba..196152f26722f6863c4d45b9b632669cc340a3be 100755 (executable)
--- a/service
+++ b/service
@@ -329,8 +329,9 @@ if (defined $ENV{'USERV_USER'}) {
     $user = ((getpwuid $<)[0]) or die;
 }
 
-$usage2 .= "ADDR may be a local part, implicitly qualified with \@$dom\n"
-    if defined $qualdom;
+$usage2 .= defined $dom
+    ? "ADDR may be a local part, implicitly qualified with \@$dom\n"
+    : "ADDR must be a local part (only)\n";
 $usage2 .= "REDIRECT is implicitly qualified with \@$qualdom if it has no \@\n"
     if defined $qualdom;