make_chroot: clean up final log info

When we create a chroot for the first time, we see:
	...
	Exiting: Nothing left to do; exiting. :)
	Elapsed time: 5m10s
	cros_sdk: All set up.  To enter the chroot, run:"
	cros_sdk: $ cros_sdk --enter "

	CAUTION: Do *NOT* rm -rf the chroot directory; if there are stale bind
	mounts you may end up deleting your source tree too.  To unmount and
	delete the chroot cleanly, use:
	$ cros_sdk --delete
	(cr) (v) vapier@vapier ~/trunk/src/scripts $

Kill the spurious double quotes, add new lines to make the text easier
to pick out from the previous command/new prompt, and only show the
sdk prefix on the first line.

BUG=None
TEST=`cros_sdk --delete && cros_sdk` looks nice

Change-Id: Iba0ee68035fffe6fc946e9b3476cc0d0b55abfc5
Reviewed-on: https://gerrit.chromium.org/gerrit/16075
Reviewed-by: David James <davidjames@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/sdk_lib/make_chroot.sh b/sdk_lib/make_chroot.sh
index 384f8c1..64d4334 100755
--- a/sdk_lib/make_chroot.sh
+++ b/sdk_lib/make_chroot.sh
@@ -474,11 +474,13 @@
 print_time_elapsed
 
 cat <<EOF
-${CROS_LOG_PREFIX:-cros_sdk}: All set up.  To enter the chroot, run:"
-${CROS_LOG_PREFIX:-cros_sdk}: $ cros_sdk --enter $CHROOT_EXAMPLE_OPT"
+
+${CROS_LOG_PREFIX:-cros_sdk}: All set up.  To enter the chroot, run:
+$ cros_sdk --enter $CHROOT_EXAMPLE_OPT
 
 CAUTION: Do *NOT* rm -rf the chroot directory; if there are stale bind
 mounts you may end up deleting your source tree too.  To unmount and
 delete the chroot cleanly, use:
 $ cros_sdk --delete $CHROOT_EXAMPLE_OPT
+
 EOF