mthr: don't try to print a parent for toplevel messages

8 years ago · 95bd63e7b0
parent 36b1dbd0d1
commit 95bd63e7b0
1 changed files with 3 additions and 2 deletions
--- a/contrib/mthr
+++ b/contrib/mthr
@ -33,8 +33,9 @@ mode==2 && ind <= dep { sel = 0 }
 }
 mode==2 && sel { print }
 mode==3 && sel {
-	print parents[ind-1]
-                 sel = 0
+	if (ind>0)
+		print parents[ind-1]
+	sel = 0
 }
 mode==3 {parents[ind] = $0 }
 ' - $(mseq $@)