Type a command, regret you typed so much before checking something else,
comment it out for later with Meta-# (Alt-Shift-3). The whole line is
now commented out and saved to history. Recall it later with Ctrl-P or
Up arrow, delete the leading # with Ctrl-D, and run it.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Joachim Wiberg
98a39d989c