bootstrap: Check SHA256 checksums for tarball downloads
commite763e97770a0cfeb3845f2201626374aa77c00df
authorOlly Betts <olly@survex.com>
Wed, 11 Apr 2018 23:10:34 +0000 (12 11:10 +1200)
committerOlly Betts <olly@survex.com>
Wed, 11 Apr 2018 23:10:34 +0000 (12 11:10 +1200)
treeeac3d7c2add6d82ddbf834a123880ead5dc9de3a
parenta470ed4877f5ea1ed08716fccc65cd8c3cbae83c
bootstrap: Check SHA256 checksums for tarball downloads

We were using SHA1 checksums, which aren't really good enough now.
bootstrap