fixing d-l --quiet support

[jpryzby+d at quoininc.com (Justin Pryzby)]

This fixes support for live-helper --quiet that already existed.
apt{,itude} is the next target but requires some more work due to use
of case statements.

BTW I think --quiet should be the default to make errors more obvious,
but would require --noquiet or such to be added to achieve the current
behavior.

--- usr/bin/lh_config	2007-09-17 04:58:03.000000000 -0400
+++ /usr/bin/lh_config	2007-09-18 16:36:11.000000000 -0400
@@ -703,7 +703,7 @@
 
 # \$LH_QUIET: enable quiet
 # (Default: ${LH_QUIET})
-#LH_QUIET="${LH_QUIET}"
+LH_QUIET="${LH_QUIET}"
 
 # \$LH_VERBOSE: enable verbose
 # (Default: ${LH_VERBOSE})
--- usr/bin/lh_bootstrap_cdebootstrap	2007-09-17 04:58:03.000000000 -0400
+++ /usr/bin/lh_bootstrap_cdebootstrap	2007-09-18 16:36:36.000000000 -0400
@@ -81,17 +81,17 @@
 	CDEBOOTSTRAP_OPTIONS="${CDEBOOTSTRAP_OPTIONS} --flavour=minimal"
 fi
 
-if [ "${LH_DEBUG}" = "true" ]
+if [ "${LH_DEBUG}" = "enabled" ]
 then
 	CDEBOOTSTRAP_OPTIONS="${CDEBOOTSTRAP_OPTIONS} --debug"
 fi
 
-if [ "${LH_QUIET}" = "true" ]
+if [ "${LH_QUIET}" = "enabled" ]
 then
 	CDEBOOTSTRAP_OPTIONS="${CDEBOOTSTRAP_OPTIONS} --quiet"
 fi
 
-if [ "${LH_VERBOSE}" = "true" ]
+if [ "${LH_VERBOSE}" = "enabled" ]
 then
 	CDEBOOTSTRAP_OPTIONS="${CDEBOOTSTRAP_OPTIONS} --verbose"
 fi