[elpa] externals/compat updated (191c333905 -> 0570e869bc)

[ELPA Syncer]

elpasync pushed a change to branch externals/compat.

      from  191c333905 compat-27: Add read-char-from-minibuffer
       new  816d415dc2 compat-guard: Remove currently unused attribute :when
       new  0570e869bc compat: Improve docstrings


Summary of changes:
 compat-macs.el | 24 +++++++-----------------
 compat.el      | 24 +++++++++++++-----------
 2 files changed, 20 insertions(+), 28 deletions(-)