[elpa] externals/compat updated (15288f4771 -> cfa81c0566)

[ELPA Syncer]

elpasync pushed a change to branch externals/compat.

      from  15288f4771 compat-29: Add while-let test
       new  68ead168f8 compat-29: Add buttonize and buttonize-region
       new  b2efae0997 compat-29: Fix typo in last commit
       new  543805066a Remove unnecessary :feature arguments from compat-defuns
       new  cfa81c0566 compat-tests: Update comment


Summary of changes:
 NEWS.org        |  1 +
 compat-25.el    |  1 -
 compat-28.el    | 18 ------------------
 compat-29.el    | 45 +++++++++++++++++++++++++++++++++++++++++++++
 compat-macs.el  | 19 ++++++++++++-------
 compat-tests.el | 27 +++++++++++++++++++++++++--
 compat.texi     | 29 +++++++++++++++++++----------
 7 files changed, 102 insertions(+), 38 deletions(-)