#171 Fix NSS shutdown issues when obtaining the internal token name
Merged by rcritten. Opened by rcritten.
rcritten/certmonger issue_8533  into  master

The slot wasn't being freed every time util_internal_token_name()
was called which caused NSS_Shutdown() and NSS_ShutdownContext()
to return SEC_ERROR_BUSY.

Discovered in IPA issue https://pagure.io/freeipa/issue/8533

Tested locally and in IPA CI and confirmed successful shutdown.

Pull-Request has been merged by rcritten