Failure stripping PostGIS axis from srid=2000

[jng]

After #934, the PostGIS suite has this one last test failure

PostGIS spatial context test is failing for srid=2000 with this WKT:

PROJCS["Anguilla 1957 / British West Indies Grid",GEOGCS["Anguilla 1957",DATUM["Anguilla_1957",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],AUTHORITY["EPSG","6600"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4600"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-62],PARAMETER["scale_factor",0.9995],PARAMETER["false_easting",400000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2000"]]

The fixed WKT is malformed at the end (note the lack of comma before the last AUTHORITY element

PROJCS["Anguilla 1957 / British West Indies Grid",GEOGCS["Anguilla 1957",DATUM["Anguilla_1957",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],AUTHORITY["EPSG","6600"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4600"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-62],PARAMETER["scale_factor",0.9995],PARAMETER["false_easting",400000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]]AUTHORITY["EPSG","2000"]]