shadow: disable creating mailbox files and use /var/mail instead.

--HG--
extra : convert_revision : abd5e24ab085b0efbaf0c52f5afede8add835d48

templates/shadow/template

@@ -29,6 +29,7 @@ pre_build()
 	cd $wrksrc && \
 		sed -i 's/groups$(EXEEXT) //' src/Makefile && \
 		find man -name Makefile -exec sed -i 's/groups\.1 / /' {}
+	sed -i -e 's@/var/spool/mail@/var/mail@' etc/login.defs
 }
 
 post_install()
@@ -39,6 +40,9 @@ post_install()
 		install -m644 $DESTDIR/etc/pam.d/chage $DESTDIR/etc/pam.d/${f}
 	done
 
+	# Disable creating mailbox files by default.
+	sed -i -e 's/yes/no/' $DESTDIR/etc/default/useradd
+
 	# Install the cron daily job.
 	install -D -m744 ${FILESDIR}/shadow.cron-daily \
 		${DESTDIR}/etc/cron.daily/shadow