Useful patch from @gray-wolf that was submitted to alpine-devel ML 5 months ago, after kindly asking if people want this and getting critical acclaim. I like this patch so I'm re-posting it here for better visibility. If it needs changes, I'm happy to take care of it.
In order to make diffs more tidy and the APKBUILD overall more visually
pleasing, new lines are added after opening and before closing quote,
turning
sha512sums="HASH foo
HASH bar"
into
sha512sums="
HASH foo
HASH bar
"
therefore keeping alignment of file names.