Fix ReflectionMethod signatures for appendByKey,prepend, etc. (#352)

Author: TysonAndre

Diff for: php_memcached.c

@@ -3775,27 +3775,23 @@ ZEND_END_ARG_INFO()
 ZEND_BEGIN_ARG_INFO_EX(arginfo_append, 0, 0, 2)
 	ZEND_ARG_INFO(0, key)
 	ZEND_ARG_INFO(0, value)
-	ZEND_ARG_INFO(0, expiration)
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_appendByKey, 0, 0, 3)
 	ZEND_ARG_INFO(0, server_key)
 	ZEND_ARG_INFO(0, key)
 	ZEND_ARG_INFO(0, value)
-	ZEND_ARG_INFO(0, expiration)
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_prepend, 0, 0, 2)
 	ZEND_ARG_INFO(0, key)
 	ZEND_ARG_INFO(0, value)
-	ZEND_ARG_INFO(0, expiration)
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_prependByKey, 0, 0, 3)
 	ZEND_ARG_INFO(0, server_key)
 	ZEND_ARG_INFO(0, key)
 	ZEND_ARG_INFO(0, value)
-	ZEND_ARG_INFO(0, expiration)
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_INFO_EX(arginfo_cas, 0, 0, 3)