VAULT-13763 normalize activity log mount paths

[miagilepner]

Mount paths "auth/foo/" and "auth/foo" should both be represented as "auth/foo/" by the activity log responses, with the clients in those paths getting correctly deduplicated.

I didn't create a changelog entry since there's already one for the original change: #18916

[mpalmi]

Looks good to me!

[hellobontempo]

I'm curious about the comment on line 269 - this is no longer true since the mount accessor doesn't replace the path anymore, right? Just want to confirm my understanding! 😁

[miagilepner]

I'm curious about the comment on line 269 - this is no longer true since the mount accessor doesn't replace the path anymore, right? Just want to confirm my understanding! 😁

The comment on mountAccessorToMountPath is still true - the mount accessor still gets transformed to a mount path, and that's returned. But that mount path will always have a / on the end of it, so we won't have that issue where we end up with both auth/token and auth/token/ in the mounts array.