cleanup: format help text to ease reading
cleanup: format help text to ease reading

BRANCH=none
BUG=none
TEST=verify help text on command line

Change-Id: Iec19641eb0a61f1f0de1afe4b59b587b8f0d7410
Signed-off-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1945820
Reviewed-by: Daisuke Nojiri <fd5f93af191bf7e8f73ea71cc3c0f66b41b1dd49@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec