Fix header guard in GeometryExtracter (#617)

git-svn-id: http://svn.osgeo.org/geos/trunk@3758 5242fede-7e19-0410-aef8-94bd7d2200fb
Fix header guard and port info in LocatioNIndexOfLine (#618)

git-svn-id: http://svn.osgeo.org/geos/trunk@3760 5242fede-7e19-0410-aef8-94bd7d2200fb