Patch: Fix bluetooth-config's parameter parsing

[erdgeist_erdgeist.org]

Summary

This addresses the problems encountered when parsing options in bluetooth-config.

• the optional parameters were not properly shifted after consumption
• the command line parameter count was checked before getopts and not after

[lme]

Looks good to me!

[lme]

committed as 5031da20

https://cgit.freebsd.org/src/commit/?id=5031da20599bb1163f0e8d1c4b415ab3bbebce00