rerwin: modems: module loading fix

Rerwin has posted improvements to scripts /sbin/pup_event_modprobe_backend_protect and /etc/rc.d/functions4puppy4:
http://murga-linux.com/puppy/viewtopic.php?t=76961&start=720

Woof commit:
http://bkhome.org/fossil/woof2.cgi/info/20181a4a05

Tags: woof