sys-libs/ncurses: add screen.xterm-256colors

TERM is set to screen.xterm-256colors when in Rodete, let's make sure
this terminal type is recognized inside chroot.

BUG=chromium:810893
TEST=none

Change-Id: I70f152294584a658008b00e7618de2a680301014
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1064481
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed