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Richard M. Stallman authored
(format_mode_line_unwind_data): New arg SAVE_PROPTRANS controls whether to save and restore mode_line_proptrans_alist. Callers changed. (unwind_format_mode_line): Work with that feature. (redisplay_internal): Don't call prepare_menu_bars if memory full. (move_elt_to_front): New function. (display_mode_element): Use move_elt_to_front. Don't bother munging text props on a null string. Delete obsolete elts from mode_line_proptrans_alist. (decode_mode_spec): Test Vmemory_full, not spare_memory.
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