@@ -103,7 +103,7 @@ case "$lsb_dist" in

 	Ubuntu|Debian)

 		export DEBIAN_FRONTEND=noninteractive

-		

+

 		did_apt_get_update=

 		apt_get_update() {

 			if [ -z "$did_apt_get_update" ]; then

@@ -111,21 +111,21 @@ case "$lsb_dist" in

 				did_apt_get_update=1

 			fi

 		}

-		

+

 		# aufs is preferred over devicemapper; try to ensure the driver is available.

 		if ! grep -q aufs /proc/filesystems && ! $sh_c 'modprobe aufs'; then

 			kern_extras="linux-image-extra-$(uname -r)"

-			

+

 			apt_get_update

 			( set -x; $sh_c 'sleep 3; apt-get install -y -q '"$kern_extras" ) || true

-			

+

 			if ! grep -q aufs /proc/filesystems && ! $sh_c 'modprobe aufs'; then

 				echo >&2 'Warning: tried to install '"$kern_extras"' (for AUFS)'

 				echo >&2 ' but we still have no AUFS.  Docker may not work. Proceeding anyways!'

 				( set -x; sleep 10 )

 			fi

 		fi

-		

+

 		if [ ! -e /usr/lib/apt/methods/https ]; then

 			apt_get_update

 			( set -x; $sh_c 'sleep 3; apt-get install -y -q apt-transport-https' )

@@ -165,7 +165,7 @@ case "$lsb_dist" in

 		echo

 		exit 0

 		;;

-		

+

 	Gentoo)

 		if [ "$url" = "https://test.docker.io/" ]; then

 			echo >&2

@@ -180,7 +180,7 @@ case "$lsb_dist" in

 			echo >&2

 			exit 1

 		fi

-		

+

 		(

 			set -x

 			$sh_c 'sleep 3; emerge app-emulation/docker'