HADOOP-19038. Improve create-release RUN script. (#6448) Contributed by Shilun Fan.

Reviewed-by: Steve Loughran <stevel@cloudera.com>
Reviewed-by: He Xiaoqiao <hexiaoqiao@apache.org>
Signed-off-by: Shilun Fan <slfan1989@apache.org>

dev-support/bin/create-release

@@ -504,9 +504,9 @@ function dockermode
     echo "LABEL org.apache.hadoop.create-release=\"cr-${RANDOM}\""
 
     # setup ownerships, etc
-    echo "RUN groupadd --non-unique -g ${group_id} ${user_name}"
-    echo "RUN useradd -g ${group_id} -u ${user_id} -m ${user_name}"
-    echo "RUN chown -R ${user_name} /home/${user_name}"
+    echo "RUN groupadd --non-unique -g ${group_id} ${user_name}; exit 0;"
+    echo "RUN useradd -g ${group_id} -u ${user_id} -m ${user_name}; exit 0;"
+    echo "RUN chown -R ${user_name} /home/${user_name}; exit 0;"
     echo "ENV HOME /home/${user_name}"
     echo "RUN mkdir -p /maven"
     echo "RUN chown -R ${user_name} /maven"