cd2nroff: convert two warnings to errors

Since the warnings tend to get missed too easily and these are problems
we rather want addressed than letting slide.

Closes #13929

diff --git a/scripts/cd2nroff b/scripts/cd2nroff
index 7571d20cd4aa00c97c8df86ff18d181505142948..c191fcca797dd791f49d08e35ada5f83db6857dc 100755 (executable)
--- a/scripts/cd2nroff
+++ b/scripts/cd2nroff
@@ -326,7 +326,8 @@ sub single {
         }
         else {
             chomp;
-            print STDERR "WARN: unrecognized line in $f, ignoring:\n:'$_';"
+            print STDERR "$f:$line:1:ERROR: unrecognized header keyword: '$_'\n";
+            $errors++;
         }
     }
 
@@ -387,7 +388,8 @@ sub single {
         $d =~ s/\*(\S.*?)\*/\\fI$1\\fP/g;
 
         if($d =~ /[^\\][\<\>]/) {
-            print STDERR "$f:$line:1:WARN: un-escaped < or > used\n";
+            print STDERR "$f:$line:1:ERROR: un-escaped < or > used\n";
+            $errors++;
         }
         # convert backslash-'<' or '> to just the second character
         $d =~ s/\\([<>])/$1/g;