disallow whitespace in wildcards

Author: GuntherRademacher

basex-core/src/main/java/org/basex/query/QueryParser.java

@@ -2459,6 +2459,7 @@ private ExprInfo simpleNodeTest(final Kind kind, final boolean all) throws Query
       } else {
         NameTest.Scope scope = NameTest.Scope.FULL;
         if(!name.hasPrefix()) {
+          pos = p;
           if(consume(":*")) {
             // name test: prefix:*
             name = new QNm(concat(name.string(), cpToken(':')));