make "show conf" output usable as a /etc/multipath.conf
make "show conf" output usable as a /etc/multipath.conf

Some multipath.conf keywords take strings values, which can embed
spaces. Add quotes to those.

vendor
product
hwhandler
getuid
features
udev_dir
multipath_dir

and blacklist regexps

grzn/multipath-tools-explained,vijaychauhan/multipath-tools,unakatsuo/multipath-tools,unakatsuo/multipath-tools,vijaychauhan/multipath-tools,grzn/multipath-tools-explained,gebi/multipath-tools,unakatsuo/multipath-tools