YETUS-469 Allow running docker as root.

Made the error for user/group permissions to be non fatal.
The error will still be seen on the console. However, it wont be fatal.

Signed-off-by: Sean Busbey <busbey@apache.org>
diff --git a/precommit/core.d/docker.sh b/precommit/core.d/docker.sh
index 2dae49d..e933883 100755
--- a/precommit/core.d/docker.sh
+++ b/precommit/core.d/docker.sh
@@ -552,9 +552,9 @@
 LABEL org.apache.yetus=""
 LABEL org.apache.yetus.testpatch.patch="tp-${DOCKER_ID}"
 LABEL org.apache.yetus.testpatch.project=${PROJECT_NAME}
-RUN groupadd --non-unique -g ${GROUP_ID} ${USER_NAME}
-RUN useradd -g ${GROUP_ID} -u ${USER_ID} -m ${USER_NAME}
-RUN chown -R ${USER_NAME} /home/${USER_NAME}
+RUN groupadd --non-unique -g ${GROUP_ID} ${USER_NAME} || true
+RUN useradd -g ${GROUP_ID} -u ${USER_ID} -m ${USER_NAME} || true
+RUN chown -R ${USER_NAME} /home/${USER_NAME} || true
 ENV HOME /home/${USER_NAME}
 USER ${USER_NAME}
 PatchSpecificDocker