Add dummy manual pages lxsession-db.1 and lxsession-xdg-autostart.1

VALA does not allow simple C operations therefore does not give any chance
to move those binaries into $pkglibexecdir where they belong, so to drop
questions, dummy manual pages saying "do not run them" were added.
It's silly but blame VALA creators for that silly language.

debian/lxsession.install

@@ -12,4 +12,6 @@ usr/share/man/man1/lxsession-default.1
 usr/share/man/man1/lxsession-default-terminal.1
 usr/share/man/man1/lxlock.1
 usr/share/man/man1/lxclipboard.1
+usr/share/man/man1/lxsession-db.1
 usr/share/man/man1/lxsettings-daemon.1
+usr/share/man/man1/lxsession-xdg-autostart.1

man/Makefile.am

@@ -8,7 +8,9 @@ man_MANS = \
 	lxsession-default-apps.1 \
 	lxsettings-daemon.1 \
 	lxpolkit.1 \
-	lxsession-edit.1
+	lxsession-edit.1 \
+	lxsession-db.1 \
+	lxsession-xdg-autostart.1
 
 man_XMANS = \
 	lxsession.xml \

man/lxsession-db.1

@@ -0,0 +1,5 @@
+.TH "lxsession-db" 1
+.SH NAME
+lxsession-db
+.SH DESCRIPTION
+This program is for internal usage by lxsession. Never run it manually.

man/lxsession-xdg-autostart.1

@@ -0,0 +1,5 @@
+.TH "lxsession-xdg-autostart" 1
+.SH NAME
+lxsession-xdg-autostart
+.SH DESCRIPTION
+This program is for internal usage by lxsession. Never run it manually.