master updated (e7cdbc1 -> 90c89e8)

[Glenn Morris]

gm pushed a change to branch master.

      from  e7cdbc1   Make previous empty-body warning disabling more robust
      adds  fda6009   Minor copyedits of Emacs manual
      adds  fbf1cb2   Fix overfull hbox in Emacs manual
       new  90c89e8   Merge from origin/emacs-27


Summary of changes:
 doc/emacs/back.texi       | 42 ++++++++++++++++++++++--------------------
 doc/emacs/book-spine.texi |  2 +-
 doc/emacs/display.texi    |  4 ++--
 3 files changed, 25 insertions(+), 23 deletions(-)