inkscape --export-plain-svg is bloating your diffs

https://github.com/elementary/icons/blob/d9014b6e170673aeba6e6b4659d7107ef905ebef/pre-commit#L11

When you run inkscape as above it reverses the order of attributes on some, and possibly every element in the file. This means git/diff thinks the whole file is completely different. The effect can be seen on many commits such as:

https://github.com/elementary/icons/commit/6e66f7b6ee65019860526045ef868e96ce27443b#diff-3d14f510306075e4a273c08dccf99071L9

Here you can see these lines are removed and re-added in reverse order, which in XML is semantically equivalent, but not for git. This is not harmful at all, just annoying.

A very simple workaround is to run inkscape twice, as this seems to cancel out the effect.