[elpa] externals/compat updated (fcb99b1b1e -> 47953b014f)

[ELPA Syncer]

elpasync pushed a change to branch externals/compat.

      from  fcb99b1b1e Add test for keymap-substitute
       new  aea1ccfa92 Update documentation, test coverage is now 100%.
       new  b93ab4c0e0 Add test for executable-find
       new  394028541e Add test for exec-path
       new  041122b305 Update NEWS
       new  74ec2c1c56 Add test for make-nearby-temp-file
       new  47953b014f Add test for file-backup-file-names


Summary of changes:
 NEWS.org        |  8 ++++----
 compat-26.el    |  2 +-
 compat-27.el    |  4 ++--
 compat-28.el    |  2 +-
 compat-tests.el | 59 +++++++++++++++++++++++++++++++++++++++++++++++----------
 compat.texi     | 10 ++++------
 6 files changed, 61 insertions(+), 24 deletions(-)