master updated (ec22e923c0 -> 3ec6b806b2)

[Stefan Kangas]

skangas pushed a change to branch master.

      from  ec22e923c0 Teach 'symbol-file' about .eln natively-compiled files
       new  95856c5154 Add face to mouse buttons in command substitutions
       new  3ec6b806b2 Mark keys in apropos.el for substitute-command-keys


Summary of changes:
 lisp/apropos.el         | 25 ++++++++++++-------------
 lisp/help.el            |  1 +
 test/lisp/help-tests.el |  4 +++-
 3 files changed, 16 insertions(+), 14 deletions(-)