bug#48966: svt-hevc sha256 missmatch.

[Brendan Tildesley]

Since I don't know what in the files have changed and why I haven't submitted a 
patch to update it.
Tobias, are you able to figure out what changed?

Initialized empty Git repository in 
/gnu/store/83j8mz97smxm4frp6ax0k16j3zj8a8sp-svt-hevc-1.5.1-checkout/.git/
>From https://github.com/OpenVisualCloud/SVT-HEVC
 * tag               v1.5.1     -> FETCH_HEAD
Note: switching to 'FETCH_HEAD'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -c with the switch command. Example:

  git switch -c <new-branch-name>

Or undo this operation with:

  git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at b65eba0 Update version to 1.5.1
r:sha256 hash mismatch for 
/gnu/store/83j8mz97smxm4frp6ax0k16j3zj8a8sp-svt-hevc-1.5.1-checkout:
  expected hash: 0rac70p6rpvdx9v0bdd8nphgr7imdxb7nz0x77n3p7h3180zz9x0
  actual hash:   1cv6vcf5yxcwdvj5yqcckbixqrvvdxk7ibincnnv80pz6wh527sv
hash mismatch for store item 
'/gnu/store/83j8mz97smxm4frp6ax0k16j3zj8a8sp-svt-hevc-1.5.1-checkout'
build of 
/gnu/store/51k6p67lw63kwwpmpx5mbxmlaxm2vaw7-svt-hevc-1.5.1-checkout.drv failed
View build log at 
'/var/log/guix/drvs/51/k6p67lw63kwwpmpx5mbxmlaxm2vaw7-svt-hevc-1.5.1-checkout.drv.bz2'.
note: keeping build directory `/tmp/guix-build-svt-hevc-1.5.1-checkout.drv-0'
guix build: error: build of 
`/gnu/store/51k6p67lw63kwwpmpx5mbxmlaxm2vaw7-svt-hevc-1.5.1-checkout.drv' failed