XFCE comes supplied with an xinitrc script, use that instead.

It turns out that making ~/.xinitrc & ~/.xsession a shell script with a bang
path & marked executable is a relic of the past. These files are execed by
the scripts which call them.

Tested on FreeBSD-CURRENT with rene@
PR:		222844
Submitted by:	Olivier Duchateau <duchateau.olivier at gmail>
Approved by:	bcr (mentor) rene
Differential Revision:	https://reviews.freebsd.org/D16687

en_US.ISO8859-1/books/handbook/x11/chapter.xml

@@ -1507,9 +1507,7 @@ hald_enable="YES"</programlisting>
 	the display manager.  In this case, create an executable
 	<filename>~/.xsession</filename>:</para>
 
-      <screen>&prompt.user; <userinput>echo "#!/bin/sh" &gt; ~/.xsession</userinput>
+      <screen>&prompt.user; <userinput>echo "exec /usr/local/bin/gnome-session" &gt; ~/.xsession</userinput></screen>
-&prompt.user; <userinput>echo "exec /usr/local/bin/gnome-session" &gt;&gt; ~/.xsession</userinput>
-&prompt.user; <userinput>chmod +x ~/.xsession</userinput></screen>
     </sect2>
 
     <sect2 xml:id="x11-wm-kde">
@@ -1586,9 +1584,7 @@ hald_enable="YES"</programlisting>
 	an executable <filename>~/.xsession</filename> as
 	follows:</para>
 
-      <screen>&prompt.user; <userinput>echo "#!/bin/sh" &gt; ~/.xsession</userinput>
+      <screen>&prompt.user; <userinput>echo "exec /usr/local/bin/startkde" &gt; ~/.xsession</userinput></screen>
-&prompt.user; <userinput>echo "exec /usr/local/bin/startkde" &gt;&gt; ~/.xsession</userinput>
-&prompt.user; <userinput>chmod +x ~/.xsession</userinput></screen>
 
       <para>Once <application>KDE</application> is started, refer to
 	its built-in help system for more information on how to use
@@ -1620,22 +1616,30 @@ hald_enable="YES"</programlisting>
       <screen>&prompt.root; <userinput>cd /usr/ports/x11-wm/xfce4</userinput>
 &prompt.root; <userinput>make install clean</userinput></screen>
 
+      <para><application>Xfce</application> uses
+	<application>D-Bus</application> for a message bus.  This
+	application is automatically installed as dependency of
+	<application>Xfce</application>.  Enable it in
+	<filename>/etc/rc.conf</filename> so it will be started when
+	the system boots:</para>
+
+      <programlisting>dbus_enable="YES"</programlisting>
+
       <para>Unlike <application>GNOME</application> or
 	<application>KDE</application>,
 	<application>Xfce</application> does not provide its own login
 	manager.  In order to start <application>Xfce</application>
 	from the command line by typing <command>startx</command>,
-	first add its entry to <filename>~/.xinitrc</filename>:</para>
+	first create <filename>~/.xinitrc</filename> with this
+	command:</para>
 
-      <screen>&prompt.user; <userinput>echo "exec /usr/local/bin/startxfce4 --with-ck-launch" &gt; ~/.xinitrc</userinput></screen>
+      <screen>&prompt.user; <userinput>echo ". /usr/local/etc/xdg/xfce4/xinitrc" &gt; ~/.xinitrc</userinput></screen>
 
       <para>An alternate method is to use
 	<application>XDM</application>.  To configure this method,
 	create an executable <filename>~/.xsession</filename>:</para>
 
-      <screen>&prompt.user; <userinput>echo "#!/bin/sh" &gt; ~/.xsession</userinput>
+      <screen>&prompt.user; <userinput>echo ". /usr/local/etc/xdg/xfce4/xinitrc" &gt; ~/.xsession</userinput></screen>
-&prompt.user; <userinput>echo "exec /usr/local/bin/startxfce4 --with-ck-launch" &gt;&gt; ~/.xsession</userinput>
-&prompt.user; <userinput>chmod +x ~/.xsession</userinput></screen>
     </sect2>
   </sect1>