Backport new upstream patch to enable toggling the display of
the line numbers with the shortcut key M-N (Alt-n).
Also the cmdline option "-l" works.
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
Update nano editor to 2.8.7
Apply post-release fix from upstream to enable compilation
with --enable-tiny
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>