New review comment by ericonr on void-packages repository

https://github.com/void-linux/void-packages/pull/32162#discussion_r711047785

Comment:
Sure, but the file in https://github.com/wangqr/Aegisub/blob/dev/packages/desktop/aegisub.desktop.template.in already  applies the variable (if you switch to using `vsed` there it will print a warning that it didn't replace anything).