Add some more context to git-drover tutorial.

man/src/git-drover.demo.1.sh

 #!/usr/bin/env bash
 . demo_repo.sh
 
 silent git push origin refs/remotes/origin/master:refs/branch-heads/9999
 silent git config --add remote.origin.fetch \
   +refs/branch-heads/*:refs/remotes/branch-heads/*
 silent git fetch origin
 
 silent git checkout -b master origin/master
 add modified_file
 set_user some.committer
 c "This change needs to go to branch 9999"
 silent git tag pick_commit
 
 comment Before working with branches, you must \'gclient sync \
   --with_branch_heads\' at least once to fetch the branches.
 
 set_user branch.maintainer
 tick 1000
 
+echo "# Make sure we have the most up-to-date branch sources."
+run git fetch
+echo
+echo "# Here's the commit we want to 'drover'."
 run git log -n 1 --pretty=fuller
+echo
+echo "# Checkout the branch we want to 'drover' to."
 run git checkout -b drover_9999 branch-heads/9999
-echo "# DO NOT leave off the '-x' flag"
+echo
+echo "# Now do the 'drover'."
+echo "# IMPORTANT!!! Do Not leave off the '-x' flag"
 run git cherry-pick -x $(git show-ref -s pick_commit)
+echo
+echo "# That took the code authored by some.commiter and commited it to the"
+echo "# branch by branch.maintainer (us)."
 run git log -n 1 --pretty=fuller
+echo
+echo "# Looks good. Ship it!"
 pcommand git cl upload

[iannucci, 2014/08/25 23:38:37]

mention that you can skip this and just do the `land --bypass-hooks` which is
what ppl seem to do anyway.

[Michael Moss, 2014/08/25 23:47:33]

Done.

 echo "# Get LGTM or TBR."
 run git cl land