Fix a problem with an incorrect proj4 string and the associated query

to the spatial reference system database (it was never returning a
result because the proj4 string didn't have '+no_defs' on the end)


git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@5635 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/core/qgsdistancearea.cpp

@@ -154,6 +154,7 @@ bool QgsDistanceArea::setEllipsoid(const QString& ellipsoid)
   // get spatial ref system for ellipsoid
   QString proj4 = "+proj=longlat +ellps=";
   proj4 += ellipsoid;
+  proj4 += " +no_defs";
   QgsSpatialRefSys destSRS;
   destSRS.createFromProj4(proj4);