(0.9.2compat) backwards compatible changes from default uisetup was introduced after 0.9.3, so not used. Therefore different handling of monkeypatches.

Reduce opt=arg syntax even more

Check for '\0' in entire data before acting util.binary might not be safe enough, as it fails eg. on certain pdf files (issue1066). In some cases this might even be a speed gain as there will be no vain re.sub(n)/search on huge data.