Bug 601513: In xt/search.t, assure that "---" continues to work for the resolution field r=mkanat, a=mkanat (module owner)
Bug 601513: In xt/search.t, assure that "---" continues to work for the
resolution field
r=mkanat, a=mkanat (module owner)

edmorley/bugzilla,bugzilla/bugzilla,dklawren/bugzilla,bugzilla/bugzilla,dklawren/bugzilla,bugzilla/bugzilla,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,oyang/bugzilla,dklawren/bugzilla,GNOME/bugzilla-gnome-org-upstream,edmorley/bugzilla,talatdayyan/bugzilla,dylanwh/bugzilla,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,oyang/bugzilla,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,dklawren/bugzilla,dklawren/bugzilla,edmorley/bugzilla,dylanwh/bugzilla,GNOME/bugzilla-gnome-org-upstream,dylanwh/bugzilla,edmorley/bugzilla,oyang/bugzilla,talatdayyan/bugzilla,talatdayyan/bugzilla,edmorley/bugzilla,talatdayyan/bugzilla,talatdayyan/bugzilla,oyang/bugzilla,GNOME/bugzilla-gnome-org-upstream,dylanwh/bugzilla,ikpcdoctor/git-clone---branch-release-5.0-stable-https-git.mozilla.org-bugzilla-bugzilla-,GNOME/bugzilla-gnome-org-upstream,oyang/bugzilla,GNOME/bugzilla-gnome-org-upstream,bugzilla/bugzilla,dylanwh/bugzilla