nano: updated to 2.9.0

2017.11.18 - GNU nano 2.9.0 "Eta" introduces the ability to record and
replay keystrokes (M-: to start and stop recording, M-;
to play the macro back), makes ^Q and ^S do something
useful by default (^Q starts a backward search, and ^S
saves the current file), changes ^W to start always a
forward search, shows the number of open buffers (when
more than one) in the title bar, no longer asks to press
Enter when there are errors in an rc file, retires the
options '--quiet' and 'set quiet' and 'set backwards',
makes indenting and unindenting undoable, will look in
$XDG_CONFIG_HOME for a nanorc file and in $XDG_DATA_HOME
for the history files, adds a history stack for executed
commands (^R^X), does not overwrite the position-history
file of another nano, and fixes a score of tiny bugs.

(wiedi)