Index: check
===================================================================
RCS file: /home/cvs/W3C/validator/httpd/cgi-bin/check,v
retrieving revision 1.5
diff -r1.5 check
800c800
< 	next unless $line =~ /^\(H[1-6]$/;
---
> 	next unless $line =~ /^\(H[1-6]$/i;