Portadmin crashes when searching by sysname or ip

[John-Magne Bredal]

Traceback (most recent call last):

  File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py", line 109, in get_response
    response = callback(request, *callback_args, **callback_kwargs)

  File "/usr/lib/python2.7/dist-packages/nav/web/portadmin/views.py", line 123, in search_by_sysname
    return search_by_kwargs(request, sysname=sysname)

  File "/usr/lib/python2.7/dist-packages/nav/web/portadmin/views.py", line 132, in search_by_kwargs
    sysname, do_not_exist_ex)

NameError: global name 'sysname' is not defined

[John-Magne Bredal (john-m-bredal)]

Fix here: https://nav.uninett.no/hg/stable/rev/e4436513e399