add line and file info to 'Malformed line' error msg on *.num files in make-doc-nits

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11092)

diff --git a/util/find-doc-nits b/util/find-doc-nits
index c508e242fe8cde9f79ec3cf935c7573d177a32cf..2239cac58de48936bed3ca4c5aaa941eb8de0802 100755 (executable)
--- a/util/find-doc-nits
+++ b/util/find-doc-nits
@@ -752,7 +752,7 @@ sub parsenum {
         next if /^#/;
         next if /\bNOEXIST\b/;
         my @fields = split();
-        die "Malformed line $_"
+        die "Malformed line $. in $file: $_"
             if scalar @fields != 2 && scalar @fields != 4;
         push @apis, $fields[0];
     }