Using `'` for hardened instead of `h` produces different checksums

[bucko13]

When using the bitcoin-cli to import descriptors, h seems to be expected but that results in a different checksum that fails validation with bitcoind.

Unfortunately trying to import/decode descriptors with h results in broken paths when the descriptors are processed.

[bucko13]

turns out this isn't a problem with importing with bitcoin-cli. but supporting h for hardened does making it easier to format for the cli.