Fix a bug that prevented `-d' from working as-documented in sysrc(8).

Rather, prevent a bunch of debugging information from spewing onto the
screen when using the `describe' flag (misinterpreted as `debug' by
the automatatic initialization routines).

usr.sbin/sysrc/sysrc

@@ -28,6 +28,9 @@
 #
 ############################################################ INCLUDES
 
+# Prevent `-d' from being interpreted as a debug flag by common.subr
+DEBUG_SELF_INITIALIZE=
+
 BSDCFG_SHARE="/usr/share/bsdconfig"
 [ "$_COMMON_SUBR" ] || . $BSDCFG_SHARE/common.subr || exit 1
 [ "$_SYSRC_SUBR"  ] || f_include $BSDCFG_SHARE/sysrc.subr
@@ -179,6 +182,7 @@ jail_depend()
 	#
 	# Print include dependencies
 	#
+	echo DEBUG_SELF_INITIALIZE=
 	cat $BSDCFG_SHARE/common.subr
 	cat $BSDCFG_SHARE/sysrc.subr
 }