Reproducible: fixes unstable output in dictionaries-common
requested to merge rclobus-guest/live-build:rclobus/reproducible_emacsen-ispell-dicts.el into master
See #1090981: dictionaries-common: Randomness in emacsen-ispell-dicts.el (now due to enchant)
This applies the same patch as proposed in the bug report and makes the output of 'update-dictcommon-aspell' reproducible again.