replace FALSE with false so that static analyzer shuts up about it

classes/article.php

classes/backend.php

classes/feeds.php

classes/pluginhost.php

classes/pref/prefs.php

classes/rssutils.php

classes/templator.php

include/autoload.php

include/controls.php

include/functions.php

include/login_form.php

include/sanity_check.php

install/index.php

plugins/af_comics/filters/af_comics_cad.php

plugins/af_comics/filters/af_comics_comicclass.php

plugins/af_comics/filters/af_comics_comicpress.php

plugins/af_comics/filters/af_comics_darklegacy.php

plugins/af_comics/filters/af_comics_dilbert.php

plugins/af_comics/filters/af_comics_explosm.php

plugins/af_comics/filters/af_comics_pa.php