Bug 1634529

Description of problem:
I forgot to kinit before using did. I don't think that traceback is a nice reaction to that ...

Version-Release number of selected component:
did-0.9-7.fc28

Additional info:
reporter:       libreport-2.9.5
cmdline:        /usr/bin/python2 /usr/bin/did last week
crash_function: main
exception_type: AttributeError
executable:     /usr/bin/did
interpreter:    python2-2.7.15-3.fc28.x86_64
kernel:         4.18.9-200.fc28.x86_64
runlevel:       N 5
type:           Python
uid:            1000

Truncated backtrace:
cli.py:209:main:AttributeError: 'GSSError' object has no attribute 'gen_msg'

Traceback (most recent call last):
  File "/usr/bin/did", line 42, in <module>
    did.cli.main()
  File "/usr/lib/python2.7/site-packages/did/cli.py", line 209, in main
    log.debug(error.gen_msg())
AttributeError: 'GSSError' object has no attribute 'gen_msg'

Local variables in innermost frame:
users: [<did.base.User object at 0x7f30ee5ae1d0>]
header: u'Status report for the last week (2018-09-24 to 2018-09-30).'
arguments: None
emails: [u'Karel Voln\xfd <kvolny>']
team_stats: <did.stats.UserStats object at 0x7f30ee5c2590>
options: Namespace(PELC=False, PELC_created=False, PELC_resolved=False, PELC_updated=False, all=True, brief=False, bugzilla=False, bugzilla_acked=False, bugzilla_closed=False, bugzilla_commented=False, bugzilla_coverage=False, bugzilla_filed=False, bugzilla_fixed=False, bugzilla_graded=False, bugzilla_patched=False, bugzilla_posted=False, bugzilla_returned=False, bugzilla_sanitized=False, bugzilla_triaged=False, bugzilla_verified=False, config=None, custom=False, debug=False, emails=[], errata=False, errata_completed=False, fedora_comic_neue_fonts=False, fedora_comps=False, fedora_fluid_soundfont=False, fedora_game_music_emu=False, fedora_gammu=False, fedora_gt=False, fedora_horai_ume_fonts=False, fedora_jack_audio_connection_kit=False, fedora_libbs2b=False, fedora_libcddb=False, fedora_libmodplug=False, fedora_libsidplayfp=False, fedora_lingot=False, fedora_qmmp=False, fedora_qmmp_plugin_pack=False, fedora_vodovod=False, fedora_wildmidi=False, format=u'text', github=False, github_closed=False, github_created=False, merge=False, packaging=False, products=False, projects=False, rpmfusion_qmmp_plugin_pack_freeworld=False, rpmfusion_qmmp_plugins_freeworld=False, rt=False, rt_reported=False, rt_resolved=False, since=<did.base.Date object at 0x7f30e3757e10>, tcms=False, tcms_automated=False, tcms_copied=False, tcms_manual=False, tcms_plans=False, tcms_proposed=False, tcms_runs=False, tests=False, tests_OpenIPMI=False, tests_at=False, tests_bind=False, tests_busybox=False, tests_chkconfig=False, tests_chrony=False, tests_coreutils=False, tests_crda=False, tests_cronie=False, tests_cups=False, tests_cyrus_imapd=False, tests_dovecot=False, tests_dstat=False, tests_edac_utils=False, tests_file=False, tests_freeipmi=False, tests_ipmitool=False, tests_iptables=False, tests_iputils=False, tests_libpcap=False, tests_libtar=False, tests_libzip=False, tests_logrotate=False, tests_lz4=False, tests_lzo=False, tests_mariadb55=False, tests_mysql=False, tests_mysql_connector_java=False, tests_mysql_connector_odbc=False, tests_nftables=False, tests_ntp=False, tests_portreserve=False, tests_postgresql=False, tests_postgresql84=False, tests_postgresql_jdbc=False, tests_setup=False, tests_star=False, tests_systemd=False, tests_tar=False, tests_telnet=False, tests_tog_pegasus=False, tests_tzdata=False, tests_udev=False, tests_unixODBC=False, tests_util_linux=False, tests_util_linux_ng=False, tests_vixie_cron=False, tests_wireshark=False, tests_xinetd=False, tests_xz=False, tests_ypbind=False, tests_ypserv=False, tests_zip=False, tests_zlib=False, total=False, until=<did.base.Date object at 0x7f30e37579d0>, utils=False, utils_rhscl=False, verbose=False, width=79, wiki=False, wiki_brq=False, wiki_test=False)
user: <did.base.User object at 0x7f30ee5ae1d0>
error: GSSError(u'Major (851968): Unspecified GSS failure.  Minor code may provide more information, Minor (2529638944): Ticket expired',)
gathered_stats: []
email: u'Karel Voln\xfd <kvolny>'
user_stats: <did.stats.UserStats object at 0x7f30e3781890>