This is super annoying when diff-ing upstream tarballs. Whenever I do my usual search for various build system files, less hangs for a (very) long time upon meeting very long lines (e.g. minified JS files). During this time, it doesn't respond to ^c or ^\, and I have to kill(1) it from a separate terminal.
This sounds like something you should report upstream.
(In reply to Mike Gilbert from comment #1) > This sounds like something you should report upstream. aye, at https://github.com/gwsw/less/issues