Fix manifest prefix used for lang-basedir tests.

Author: kasei

sparql/sparql12/lang-basedir/manifest.ttl

@@ -1,5 +1,5 @@
 @prefix rdf:    <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
-@prefix :       <https://w3c.github.io/rdf-tests/sparql/sparql12/grouping#> .
+@prefix :       <https://w3c.github.io/rdf-tests/sparql/sparql12/lang-basedir#> .
 @prefix rdfs:   <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix mf:     <http://www.w3.org/2001/sw/DataAccess/tests/test-manifest#> .
 @prefix qt:     <http://www.w3.org/2001/sw/DataAccess/tests/test-query#> .