keysym: fix search for lexicographically larger strings

Probably a copy/paste error from a few lines above.

Signed-off-by: Ran Benita <ran234@gmail.com>
keysyms: add German T3 layout keysyms from xproto

Reference:
http://cgit.freedesktop.org/xorg/proto/xproto/commit/?id=6d4acb0e3a6568a8faaa651d4e3d32f917b9067b

Signed-off-by: Ran Benita <ran234@gmail.com>