New review comment by paper42 on void-packages repository

https://github.com/void-linux/void-packages/pull/40515#discussion_r1021249615

Comment:
Or does date respect SOURCE_DATE_EPOCH?
```suggestion
	go_ldflags+=" -X \"main.BuildTime=$(date --date "@$SOURCE_DATE_EPOCH" '+%Y-%m-%d-%H:%M UTC')\""
```