system: Small adjustment for dbcon->drop_view()
system: Small adjustment for dbcon->drop_view()

  Drop the view only if it exists, remove the error case where
  it doesn't

pprkut/lunr,pprkut/lunr,tardypad/lunr,tardypad/lunr,M2Mobi/lunr,pprkut/lunr,M2Mobi/lunr,M2Mobi/lunr,tardypad/lunr