<para><function>sd_session_get_display()</function>
may be used to determine the X11 display of the
session identified by the specified session
- identifier. The returned string is one of needs to be
+ identifier. The returned string needs to be
freed with the libc
<citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
call after use.</para>
<para><function>sd_session_get_tty()</function>
may be used to determine the TTY device of the
session identified by the specified session
- identifier. The returned string is one of needs to be
+ identifier. The returned string needs to be
freed with the libc
<citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
call after use.</para>