sc_autopilot had 24x24 instead of 16x16, most lc_lines are not pixel accurate, open the arrow in wraptext and hopefully better understandable 45 degree line symbol.

Change-Id: I10cea87be6a37c0e6bc631584473ded6657fd7f0
Reviewed-on: https://gerrit.libreoffice.org/15614Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>