cat prints % when a line is split #195
Description
cat in zsh just split the lines, but our cat prints %, which is problematic, because you can't just copy the text from the terminal anymore. If we need to print %, then it should be printed with a command-line option, but not by default, for compatibility reasons. This should be documented in cat --help (which currently does not work due to #194, but that's another issue).