emacs: fix shift-insert for gui emacs
emacs: fix shift-insert for gui emacs

GUI emacs would not work properly for Shift-Insert --- namely, trying to
do so with Korean/Japanese text would result in (useless) \u...
codepoints getting inserted.

listx/syscfg,listx/syscfg,listx/syscfg,listx/syscfg,listx/syscfg