(boolean, modify) Non-zero - names refer to same
entity. Zero - names refer to different entities (strictly, the
names are not known to refer to the same identity).
DESCRIPTION
Allows an application to compare two internal-form names to
determine whether they refer to the same entity.
If either name presented to gss_compare_name denotes an anonymous
principal, the routines should indicate that the two names do not
refer to the same identity.
RETURN VALUE
`GSS_S_COMPLETE`: Successful completion.
`GSS_S_BAD_NAMETYPE`: The two names were of incomparable types.
`GSS_S_BAD_NAME`: One or both of name1 or name2 was ill-formed.