fix: correct typo in RELEASE.md (#2509)

diff --git a/RELEASE.md b/RELEASE.md
index edfce79..f30bcb8 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -4,7 +4,7 @@
  1. Change the version in top level `gradle.properties` to a non-SNAPSHOT verson.
  2. Update the `CHANGELOG.md` for the impending release.
  3. Update the `README.md` with the new version.
- 4. `git commit -am "Prepare for release X.Y.Z."` (where X.Y.Z is the new version)
+ 4. `git commit -am "Prepare for release X.Y.Z"` (where X.Y.Z is the new version)
  5. `./gradlew clean uploadArchives`.
  6. Visit [Sonatype Nexus](https://oss.sonatype.org/) and promote the artifact.
  7. `git tag -a X.Y.X -m "Version X.Y.Z"` (where X.Y.Z is the new version)