fix whitespace and testpoint

src/pg/test/expected/42_observatory_exploration_test.out

@@ -21,7 +21,7 @@ Loading obs_11ee8b82c877c073438bc935a91d3dfccef875d1.sql fixture file...
 Done.
 Loading obs_d34555209878e8c4b37cf0b2b3d072ff129ec470.sql fixture file...
 Done.
-                                                                                          obs_search
+                                                                                          obs_search                                                                                           
 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  ("The total number of all people living in a geographic area.","Total Population",sum,es.ine)
  ("The total number of all people living in a given geographic area.  This is a very useful catch-all denominator when calculating rates.","Total Population",sum,us.census.acs)

src/pg/test/sql/42_observatory_exploration_test.sql

@@ -2,4 +2,4 @@
 
 SELECT cdb_observatory.OBS_Search('total_pop');
 
-SELECT * from cdb_observatory.OBS_GetAvailableBoundaries(_test_point());
+SELECT * from cdb_observatory.OBS_GetAvailableBoundaries(cdb_observatory._test_point());