AA_GETCON manpage doesn't list ENOPROTOOPT in the list of possible ERRNO values
The manpage for AA_GETCON() only lists EINVAL, ENOMEM, EACCES, ENOENT and ERANGE as possible errors when calling any of the listed calls; but some users are receiving ENOPROTOOPT when calling aa_getpeercon(). Shouldn't that error be added to the list?