examples/var_service/: use standard logger script, viewer and pager scripts

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

examples/var_service/tftpd/log/run

@@ -1,21 +1,2 @@
 #!/bin/sh
-
-user=logger
-
-logdir="/var/log/service/`(cd ..;basename $PWD)`"
-mkdir -p "$logdir" 2>/dev/null
-chown -R "$user": "$logdir"
-chmod -R go-rwxst,u+rwX "$logdir"
-rm -rf logdir
-ln -s "$logdir" logdir
-
-# make this dir accessible to logger
-chmod a+rX .
-
-exec >/dev/null
-exec 2>&1
-exec \
-env - PATH="$PATH" \
-softlimit \
-setuidgid "$user" \
-svlogd -tt "$logdir"
+exec std_service_logger