Fix for "Too many open files" bug

kdiff3 fails to close files properly leading to stability and speed issues.

Reviewers: mreeves

Reviewed By: mreeves

Differential Revision: https://phabricator.kde.org/D22294
1 job for 1.8 in 8 minutes and 40 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #13926
build

00:08:40