HADOOP-17056. Addendum patch: Fix typo

(cherry picked from commit 5157118bd7f3448949da885e323c163828c35aee)

dev-support/docker/Dockerfile

@@ -202,7 +202,7 @@ RUN curl -L -s -S \
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 ENV MAVEN_OPTS -Xms256m -Xmx1536m
 
-# Skip gpg verification when downlonading Yetus via yetus-wrapper
+# Skip gpg verification when downloading Yetus via yetus-wrapper
 ENV HADOOP_SKIP_YETUS_VERIFICATION true
 
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