<para><function>sd_bus_message_get_reply_cookie()</function>
returns the transaction cookie of the message the
specified message is a response to. When a reply
- message is generated for a method call message its
+ message is generated for a method call message, its
cookie is copied over into this field. Note that while
every message that is transferred is identified by a
cookie, only response messages carry a reply cookie
integer. On failure, these calls return a negative
errno-style error code.</para>
- <para>On success the cookie/reply cookie is returned
+ <para>On success, the cookie/reply cookie is returned
in the specified 64bit unsigned integer variable.</para>
</refsect1>