hide stderr messages from `ditto` against DMG
return string in `Cask::LinkChecker`
Merge pull request #6405 from rolandwalker/systemcommand_followups

Cask::SystemCommand refactor followups
cut v0.43.1
removed app stanza from google-nik-collection
Updated scroll-reverser to 1.6.1
Merge pull request #6407 from TheZoc/patch-1

Updated scroll-reverser to 1.6.1
Add TuneUp.app v2.4.8
Merge pull request #6409 from saulshanabrook/add-tuneup

Add TuneUp.app v2.4.8
changed tuneup to use latest and no_check
corrected sha256 for qiyimedia
Merge pull request #6410 from vitorgalvao/tuneup-latest

changed tuneup to use latest and no_check
Merge pull request #6411 from vitorgalvao/fix-qiyimedia

corrected sha256 for qiyimedia