qemu: qapi: Return correct entry in virQEMUQAPISchemaTraverse

virQEMUQAPISchemaTraverse would return previous-to-last queried item on
a query. It would not be a problem if checking if the given path exists
since error reporting works properly but if the caller is interested in
the result, it would be wrong.
Signed-off-by: NPeter Krempa <pkrempa@redhat.com>

src/qemu/qemu_qapi.c

@@ -76,7 +76,7 @@ virQEMUQAPISchemaTraverse(const char *baseName,
     virJSONValuePtr base;
     const char *metatype;
 
-    do {
+    while (1) {
         if (!(base = virHashLookup(schema, baseName)))
             return NULL;
 
@@ -114,7 +114,7 @@ virQEMUQAPISchemaTraverse(const char *baseName,
         }
 
         query++;
-    } while (*query);
+    }
 
     return base;
 }