#3342, ignoring M in typmod output

git-svn-id: http://svn.osgeo.org/postgis/trunk@14304 b70326c6-7e19-0410-871a-916f4a2858ee

Author: pramsey

postgis/gserialized_typmod.c

@@ -58,7 +58,7 @@ Datum postgis_typmod_out(PG_FUNCTION_ARGS)
 POSTGIS_DEBUGF(3, "Got typmod(srid = %d, type = %d, hasz = %d, hasm = %d)", srid, type, hasz, hasm);
 
 /* No SRID or type or dimensionality? Then no typmod at all. Return empty string. */
-if ( ! ( srid || type || hasz || hasz ) )
+if ( ! ( srid || type || hasz || hasm ) )
 {
 *str = '\0';
 PG_RETURN_CSTRING(str);