Just came across the issue.
Only variables should be passed by reference drush.php:152

Files: 
CommentFileSizeAuthor
#1 drush-1866894-0.patch749 bytesChi

Comments

Chi’s picture

Status:Active» Needs review
StatusFileSize
new749 bytes
greg.1.anderson’s picture

Status:Needs review» Fixed

Committed to 8.x-6.x and 7.x-5.x. Thanks.

Status:Fixed» Closed (fixed)

Automatically closed -- issue fixed for 2 weeks with no activity.