Hi!

While working on Reproducible Builds for Tails, we noticed that the img plugin's output is not deterministic: PNG images embed timestamps.

The img-determinism branch in the https://git-tails.immerda.ch/ikiwiki.git Git repository has a fix for this problem + a new test (that fails without this change, and succeeds with the branch merged).

--intrigeri

Thanks, merged --smcv