Expand the ANSI regexp to detect 6 "octets"

Needed for zebra coloring

Author: scottchiefbaker

diff-so-fancy

@@ -25,7 +25,7 @@ my $use_unicode_dash_for_ruler = git_config_boolean("diff-so-fancy.useUnicodeRul
 my $git_strip_prefix           = git_config_boolean("diff.noprefix","false");
 my $has_stdin                  = has_stdin();
 
-my $ansi_color_regex = qr/(\e\[([0-9]{1,3}(;[0-9]{1,3}){0,4})[mK])?/;
+my $ansi_color_regex = qr/(\e\[([0-9]{1,3}(;[0-9]{1,3}){0,6})[mK])?/;
 my $reset_color      = color("reset");
 my $bold             = color("bold");
 my $meta_color       = "";