Changes spaces to tabs in the APKBUILDs, thanks to this fix: https://gitlab.com/postmarketOS/pmbootstrap/merge_requests/1734 Alpine uses tabs in almost all their APKBUILDs, so we should do it the same way. [skip ci].
Generated with: $ pmbootstrap aportgen binutils-armv7 busybox-static-armv7 gcc-armv7 \ gcc7-armv7 musl-armv7 [skip ci]