Fix POD of Bugzilla::Migrate to be consistent with reality (it was slightly out-of-sync with the code when I first checked it in, because some things ended up working differently than they originally did as I developed, but the POD didn't get updated at the end).
Fix POD of Bugzilla::Migrate to be consistent with reality (it was slightly
out-of-sync with the code when I first checked it in, because some things
ended up working differently than they originally did as I developed,
but the POD didn't get updated at the end).

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