Clarify version gate used for #3229 #3258
Merged
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Related to #3229
In response to #2877 (comment), this PR is to make the version-gate a bit more clear, although I got a
E0317
compile error on what I proposed (which is nice!).Although the change is a bit verbose for what it does, I think it makes the future gate-cleaning easier: just keep what is in the
else
block. @topecongiro Up to you if it's better ;o)I also profited and added a section to the contributing file about version-gates.