Adapted from Dietmar's v3 on pbs-devel but some changes:
- reworked with a strip_suffix fn that does matching, way shorter and
even easier to read IMO
- make b/B byte symbol fully optional, not just for base-10
- also trim trailing whitespace for SizeUnit::Byte
- simplify the FromStr impl
- adapt parser unit tests such that we actually see the failed test's
definition line, simplifies debugging a bit
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
ab1c07a622