Add missing character to expected output text

By using the PDU converter: http://rednaxela.net/pdu.php it was possible to
find out why this test wasn't working, and to verify that the generated
output from Device::Gsm was correct.

t/25msgread.t

@@ -39,7 +39,7 @@ my @test_data = (
 	"From Barnaby Puttick;\nDevice-G3ò",
 	'+CMGL: 10,1,,98',
 	'0791933385285200040E850093402399810039002001103103044059C334C85E26A7C3ED3728CC669FD2EE70FD5C9787F5E9B7BB0C22F',
-	'Ci vediamo all\'inaugurazione è',
+	'Ci vediamo all\'inaugurazione è<',
 	'+CMGL: 10,1,,96',
 	'0791932350591900040C9193239882777900003030621253314058A018CBA5DB857EA8D4AAA57AF500A393A064E2F922DF006910168F65FB7FE2D12197CDB34DB94038A3D3B4C386B7796D7C1B8A7ACDAEB5DD6F5B1FC1E0C3E3F2F98D5EB7E30CFE3B3EAFCFC156',
     ' 1,.:;!?()+-*/=@#\'$%&<>_§£¤¥abc2äàÇåædef3¤éèghi4ì[\\]^jkl5mno6ñòøöpqrs7tuv8ùüwxyz90+'