Fix some tests and exclude others from CRLF rewriting.

tests/lib/convert/utf84_test.dart

Index: tests/lib/convert/utf84_test.dart
diff --git a/tests/lib/convert/utf84_test.dart b/tests/lib/convert/utf84_test.dart
index 37f0e2c72dd9dc3c713f21d7e49f92bae92c0068..ddd1dc98448a4947e74318f4fab59dc3eaa69692 100755
--- a/tests/lib/convert/utf84_test.dart
+++ b/tests/lib/convert/utf84_test.dart
@@ -87,9 +87,8 @@ const List<int> testGreekUtf8 = const<int>[
     0xbd, 0xb6, 0x20, 0xce, 0xbe, 0xce, 0xad, 0xcf,
     0x86, 0xcf, 0x89, 0xcf, 0x84, 0xce, 0xbf];
 
-const String testKatakanaPhrase = """
-イロハニホヘト チリヌルヲ ワカヨタレソ ツネナラム
-ウヰノオクヤマ ケフコエテ アサキユメミシ ヱヒモセスン""";
+const String testKatakanaPhrase = "イロハニホヘト チリヌルヲ ワカヨタレソ "
+    "ツネナラム ウヰノオクヤマ ケフコエテ アサキユメミシ ヱヒモセスン";
 
 const List<int> testKatakanaUtf8 = const<int>[
     0xe3, 0x82, 0xa4, 0xe3, 0x83, 0xad, 0xe3, 0x83,
@@ -101,7 +100,7 @@ const List<int> testKatakanaUtf8 = const<int>[
     0x82, 0xbf, 0xe3, 0x83, 0xac, 0xe3, 0x82, 0xbd,
     0x20, 0xe3, 0x83, 0x84, 0xe3, 0x83, 0x8d, 0xe3,
     0x83, 0x8a, 0xe3, 0x83, 0xa9, 0xe3, 0x83, 0xa0,
-    0x0a, 0xe3, 0x82, 0xa6, 0xe3, 0x83, 0xb0, 0xe3,
+    0x20, 0xe3, 0x82, 0xa6, 0xe3, 0x83, 0xb0, 0xe3,
     0x83, 0x8e, 0xe3, 0x82, 0xaa, 0xe3, 0x82, 0xaf,
     0xe3, 0x83, 0xa4, 0xe3, 0x83, 0x9e, 0x20, 0xe3,
     0x82, 0xb1, 0xe3, 0x83, 0x95, 0xe3, 0x82, 0xb3,