Add missing text_format_test

Author: stepancheg

src/test/lib.rs

@@ -3,13 +3,14 @@
 extern crate protobuf;
 
 mod shrug;
-mod test_root;
-mod text_format_test_data;
-mod test_nonunique_enum;
 mod test_ident;
-mod test_lite_runtime;
-mod test_sanitize_file_name;
 mod test_import;
 mod test_import_imported;
+mod test_lite_runtime;
+mod test_nonunique_enum;
+mod test_root;
+mod test_sanitize_file_name;
+mod text_format_test;
+mod text_format_test_data;
 
 mod test;

src/test/text_format_test.rs

@@ -2,7 +2,7 @@ use std::default::Default;
 
 use text_format_test_data::*;
 
-use super::print_to_string;
+use protobuf::text_format::print_to_string;
 
 fn t(expected: &str, setter: |&mut TestTypes|) {
     let mut m = TestTypes::new();