98_DOIFtools.pm: fixed detailFn for DOIF extra line

git-svn-id: https://svn.fhem.de/fhem/trunk@14806 2b470e98-0d58-463d-a4d8-8e2adae1ed80
2017-07-28 06:21:38 +00:00
parent e67ee943c8
commit d32824eb6e
1 changed files with 1 additions and 1 deletions
--- a/fhem/FHEM/98_DOIFtools.pm
+++ b/fhem/FHEM/98_DOIFtools.pm
@@ -373,7 +373,7 @@ sub DOIFtools_eM($$$$) {
        }
      }
  }
-  return $ret;
+  return $ret ? $ret : undef;
 }
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