Fix typo in GSS_S_UNAUTHORIZED error message

Remove an erroneous double space in the gss_display_status() result
for GSS_S_UNAUTHORIZED.

[ghudson@mit.edu: edit commit message]

(cherry picked from commit 36732bf2084803eef52ad56576e5a50f37ccd115)

https://github.com/krb5/krb5/commit/80ce209ec2839fd02abe80a3fc71742cde5bb8dd
Author: Tomas Kuthan <tkuthan@gmail.com>
Committer: Tom Yu <tlyu@mit.edu>
Commit: 80ce209ec2839fd02abe80a3fc71742cde5bb8dd
Branch: krb5-1.13
 src/lib/gssapi/mechglue/g_dsp_status.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)