Dont prune rows if no chars need removed
Dont prune rows if no chars need removed

dropbox/changes,dropbox/changes,wfxiang08/changes,bowlofstew/changes,bowlofstew/changes,dropbox/changes,wfxiang08/changes,dropbox/changes,wfxiang08/changes,bowlofstew/changes,bowlofstew/changes,wfxiang08/changes