[PostGIS] #1765: Incorrect ST_Extent example in README_Raster.txt

[PostGIS]

#1765: Incorrect ST_Extent example in README_Raster.txt
----------------------------+-----------------------------
  Reporter:  mloskot        |      Owner:  robe
      Type:  defect         |     Status:  new
  Priority:  medium         |  Milestone:  PostGIS Fund Me
 Component:  documentation  |    Version:  2.0.x
Resolution:                 |   Keywords:  extent
----------------------------+-----------------------------
Comment (by jratike80):

 I believe it would be safe to close this ticket as won't fix or outdated
 or anything.
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/1765#comment:2>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.