fix added tests

Author: pmmaga

tests/keys.phpt

@@ -15,13 +15,13 @@ $ascii = memc_get_instance ();
 var_dump ($binary->set ('binary key with spaces', 'this is a test'));
 var_dump ($binary->getResultCode () == Memcached::RES_BAD_KEY_PROVIDED);
 
-var_dump ($binary->set ('binarykeywith\nnewline', 'this is a test'));
+var_dump ($binary->set ('binarykeywithnewline' . PHP_EOL, 'this is a test'));
 var_dump ($binary->getResultCode () == Memcached::RES_BAD_KEY_PROVIDED);
 
 var_dump ($ascii->set ('ascii key with spaces', 'this is a test'));
 var_dump ($ascii->getResultCode () == Memcached::RES_BAD_KEY_PROVIDED);
 
-var_dump ($binary->set ('asciikeywith\nnewline', 'this is a test'));
+var_dump ($binary->set ('asciikeywithnewline' . PHP_EOL, 'this is a test'));
 var_dump ($binary->getResultCode () == Memcached::RES_BAD_KEY_PROVIDED);
 
 var_dump ($ascii->set (''/*empty key*/, 'this is a test'));