Log Message:
Finally update xlockmore to 5.19. Changes:

  labeling added to ant and ant3d.  The other day, ant3d made a really
    cool looking fan... that prompted me to add labeling so I could save
    the ones I like.
  configure fix for DragonFly thanks to Joerg Sonnenberger
    <joerg AT britannica.bec.de>
  molecule mode fixes, glPushAttrib calls calls were passing invalid
    values thanks to Brian Paul <brianp AT ra.avid.com>.
  5.18 patch for PAM seems to cause problems in Gentoo linux so
    added a GENTOO ifndef around the problem line.
  Fix for a subversion version of ImageMagick thanks to Jouk Jansen.
  Fix for uninitialized read, thanks to Tom Schmidt.