POSIX sh empty value check compatibility - part 1 (#62)

# Conflicts:
#	debian/resources/switch/package-all.sh
#	debian/resources/switch/package-release.sh

debian/resources/arguments.sh

@@ -31,7 +31,7 @@ if [ -z "$CPU_CHECK" ]; then
 	  esac
 	done
 	
-	if [ $HELP = true ]; then
+	if [ .$HELP = .true ]; then
 		warning "Debian installer script"
 		warning "	--use-switch-source will use freeswitch from source rather than ${green}(default:packages)"
 		warning "	--use-switch-package-all if using packages use the meta-all package"

debian/resources/fail2ban.sh

@@ -23,7 +23,7 @@ cp fail2ban/nginx-dos.conf /etc/fail2ban/filter.d/nginx-dos.conf
 cp fail2ban/jail.local /etc/fail2ban/jail.local
 
 #update config if source is being used
-if [ $USE_FREESWITCH_SOURCE = true ]; then
+if [ .$USE_FREESWITCH_SOURCE = .true ]; then
 	sed 's#var/log/freeswitch#usr/local/freeswitch/log#g' -i /etc/fail2ban/jail.local
 fi
 

debian/resources/fusionpbx.sh

@@ -13,7 +13,7 @@ verbose "Installing FusionPBX"
 apt-get install -y --force-yes vim git dbus haveged ssl-cert
 apt-get install -y --force-yes ghostscript libtiff5-dev libtiff-tools
 
-if [ $USE_SYSTEM_MASTER = true ]; then
+if [ .$USE_SYSTEM_MASTER = .true ]; then
 	verbose "Using master"
 	BRANCH=""
 else

debian/resources/reboot_phones.sh

@@ -24,7 +24,7 @@ INPUT=$FILE
 #Loop through the registrations and reboot
 [ ! -f $INPUT ] &while read reg_user realm extra
 do
-        if [ "$realm" = "$domain" ]; then
+        if [ ."$realm" = ."$domain" ]; then
                 eval 'fs_cli -x "luarun app.lua event_notify internal reboot $reg_user@$realm $vendor"'
 		if [ "$pausetime" > 0 ]; then
 			sleep $pausetime