Can now "comment" out sections.

Previously, having a entry like "a = b" when the input file had "# a"
would uncomment it and set its value to "b". This is good, but what if
you wanted to comment out "a = b"? Now you can by placing a "# " at the
beginning of the entry (yeah the space is needed).

For instance, the following will comment out the line that begins with
"osapi_volume_listen_port":

bulk-config -i /etc/cinder/cinder.conf -o /etc/cinder/cinder.conf-new << EOM
[DEFAULT]
sql_connection = mysql://cinder:password@localhost:3306/cinder
# osapi_volume_listen_port=5900
rabbit_password = password
iscsi_helper=ietadm
api_paste_config = /etc/cinder/api-paste.ini
EOM
Merge branch 'master' of https://github.com/howardabrams/dot-files