Merge from origin/emacs-26

Merge from origin/emacs-26

74a3a79 (origin/emacs-26) Fix a typo in a doc string
911766d Minor markup fix in frames.texi
19ed1e9 * lisp/net/trampver.el (customize-package-emacs-version-alist...
d7132ad * lisp/mh-e/mh-e.el (customize-package-emacs-version-alist): ...
5f39260 * lisp/emacs-lisp/map-ynp.el (map-y-or-n-p): Pass format to m...
a291f62 Don't call xwidget functions until GTK has been initialized
f0531b8 Improve documentation of Ediff wordwise commands
2925ce5 Support Hunspell 1.7.0 in ispell.el
03bb7a8 Avoid clearing echo-area message by auto-save-visited-file-name