/* Mark keybinding in KeybindingDB (char_selected_kb_db()-) selected by "kb_c"
* as being edited, get user input to modify it, then unmark it again. Ensure
* there are max. three digits in the ASCII string of the kecode read from user.
/* Mark keybinding in KeybindingDB (char_selected_kb_db()-) selected by "kb_c"
* as being edited, get user input to modify it, then unmark it again. Ensure
* there are max. three digits in the ASCII string of the kecode read from user.