[roll] Roll fuchsia [lights][docs] Update lights-cli help text

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/724162
Original-Revision: a99efc17ab190b6e11ba3eb198e19c427ddb09aa
GitOrigin-RevId: a4cc577316cf9cb03f804d6ada5aec228256fea9
Change-Id: I2d41fe15cac9849c5d5cd529b4bbd9cdb6fa9aab
diff --git a/stem b/stem
index 070b567..7500d2e 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="29da67a9447ca333145b86b1bef28b0d8b6d4dcc"/>
+             revision="a99efc17ab190b6e11ba3eb198e19c427ddb09aa"/>
   </projects>
   <hooks>
     <hook name="install-environment"