GitLab

	(XTread_socket): Pass it by reference to XLookupString.

	* xterm.c: Clean up some of the caps lock handling:
	(x_shift_lock_mask): New variable.
	(x_find_modifier_mappings): Set it, based on the modifier mappings.
	(x_convert_modifiers): Use x_shift_lock_mask, instead of assuming
	that the lock bit always means to shift the character.
	(XTread_socket): When handling KeyPress events, don't pass an
	XComposeStatus structure along to XLookupString.  When handling
	MappingNotify events, call XRefreshKeyboardMapping for both
	MappingModifier and MappingKeyboard events, not just the latter.