[krbdev.mit.edu #7020] reading minor error message doesn't work for the IAKERB mech

[Ralf Haferkamp via RT]

Hi,

gss_display_status() allways returns "could not get minor error message" 
when using the IAKERB mech and trying to retrieve the minor error 
message.

The attached patch (against current trunk) seems to fix the problem. The 
issue is also present in the krb5-1-9 branch.

regards,
	Ralf