<function>sd_bus_open_system()</function> does the same, but
connects to the system bus.</para>
- <para>If <varname>$DBUS_SESSION_BUS_ADDRESS</varname> environment
+ <para>If the <varname>$DBUS_SESSION_BUS_ADDRESS</varname> environment
variable is set
(c.f. <citerefentry><refentrytitle>environ</refentrytitle><manvolnum>7</manvolnum></citerefentry>),
it will be used as the address of the user bus. This variable can
this variable is not set, a suitable default for the default user
D-Bus instance will be used.</para>
- <para>If <varname>$DBUS_SYSTEM_BUS_ADDRESS</varname> environment
+ <para>If the <varname>$DBUS_SYSTEM_BUS_ADDRESS</varname> environment
variable is set, it will be used as the address of the system
bus. This variable uses the same syntax as
<varname>$DBUS_SESSION_BUS_ADDRESS</varname>/. If this variable is
<citerefentry><refentrytitle>sd_bus_unref</refentrytitle><manvolnum>3</manvolnum></citerefentry>.
</para>
- <para>Functions <function>sd_bus_default_user()</function> and
+ <para>The functions <function>sd_bus_default_user()</function> and
<function>sd_bus_default_system()</function> do not create a new
reference.</para>
</refsect1>