layout/data2safety: fix an unimportant undefined variable reference

diff --git a/layout/data2safety b/layout/data2safety
index 8a9c73eb74dfbe04acb15b7b41965e54c4004845..c126713059bfab86fc124445daeca8325f7fcde4 100755 (executable)
--- a/layout/data2safety
+++ b/layout/data2safety
@@ -255,7 +255,7 @@ sub line_endwiring () {
     m,^\s*segment\s+(\w+\.\d+)\s+(\w+\.\d+)\s+(\w+)(?:/((?:[A-Za-z]+\d+)+)\*\d+)?\s+([0-9.]+)$, or return syntaxerror();
     ($ns[0],$ns[1],$seg,$subspec,$dist)=($1,$2,$3,$4,$5);
     if (!exists $segs{$seg}) {
-       ditch("unwired $seg/$subspec");
+       ditch("unwired $seg".(defined $subspec ? "/$subspec" : ""));
        return;
     }
     $segr= $segs{$seg};