Fix the checkout instructions

docs/devel/releasing.md

@@ -139,7 +139,7 @@ manage cherry picks prior to cutting the release.
 1. `export VER=x.y` (e.g. `0.20` for v0.20)
 1. `export PATCH=Z` where `Z` is the patch level of `vX.Y.Z`
 1. cd to the base of the repo
-1. `git fetch upstream && git checkout -b upstream/release-${VER}`
+1. `git fetch upstream && git checkout -b upstream/release-${VER} release-${VER}`
 1. Make sure you don't have any files you care about littering your repo (they
    better be checked in or outside the repo, or the next step will delete them).
 1. `make clean && git reset --hard HEAD && git clean -xdf`