Fix the "Kernel features are written to cache:" test

the cache test is failing because it assumes that kernel features are
stored in a file instead of a directory

Signed-off-by: John Johansen <john.johansen@canonical.com>
Acked-By: Steve Beattie <sbeattie@ubuntu.com>

parser/parser_main.c

@@ -768,7 +768,7 @@ static char *handle_features_dir(const char *filename, char **buffer, int size,
 
 		}
 
-		pos = snprintf_buffer(*buffer, pos, size, " }\n");
+		pos = snprintf_buffer(*buffer, pos, size, "}\n");
 	}
 	if (dirent_path)
 		free(dirent_path);