Because MD5 stored a "Bytes {}" wrapper to its internal data buffer,
it was not actually movable. However, its use in several parts of
the system (such as HashManager) assumed it was, leading to crashes.
Fixes#8135
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
