Sometimes your screen needs to be refreshed. Just think about what happens when somebody wants to talk with you and the talk daemon writes something like this
Message from Talk_Daemon@galei.cs.vu.nl at 12:15 ... talk: connection requested by andrei@galei.cs.vu.nl. talk: respond with: talk andrei@galei.cs.vu.nl
on your screen. And sometimes you might also want to re-read the
current directories. git provides some built-in commands for
refreshing the screen contents.
^L
Re-read the directories contents re-displaying them using optimizations. Only those parts of the screen that have changed are repainted (`refresh').
^X l
Refresh the entire screen contents without using optimizations. Useful
when some "nice" program wrote something on the screen, because
git has no way to detect this (`hard-refresh').
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