master updated (4da785e -> a4e789c)

[Juri Linkov]

jurta pushed a change to branch master.

      from  4da785e   ; Minor fixes of doc strings in xdisp.c
       new  5c8c3d5   * lisp/tab-bar.el: Avoid micro-steps in 
tab-bar-history-back/forward.
       new  a4e789c   * lisp/tab-bar.el: Optimize data usage for nil 
tab-bar-history-mode.


Summary of changes:
 lisp/tab-bar.el | 53 ++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 36 insertions(+), 17 deletions(-)