[elpa] externals/buffer-env updated (c76e282125 -> 21766a5052)

[ELPA Syncer]

elpasync pushed a change to branch externals/buffer-env.

      from  c76e282125 Small refactoring
       new  b8e16eb15b Redirect process output to a separate buffer
       new  71a0ec66da Cache the results of buffer-env-update
       new  d3485947ff Add a simple check to detect outdated cache entries
       new  e8aa3f9bfe Suppress sentinel output
       new  21766a5052 Remove a cache invalidation heuristic


Summary of changes:
 buffer-env.el | 101 ++++++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 66 insertions(+), 35 deletions(-)