vt: add Ctrl+/ key mapping This matches Xorg's handling of Ctrl+/ and may be useful as a tmux escape. PR: 212197 Submitted by: martin at sugioarto.com Tested by: Arshan Khanifar <arshankhanifar_gmail.com> MFC after: 2 weeks Relnotes: Yes
head/share/vt/keymaps/us.kbd