[SPARK-23174][DOC][PYTHON] python code style checker update fix.

dev/lint-python

@@ -34,8 +34,8 @@ python -B -m compileall -q -l $PATHS_TO_CHECK > "$PYCODESTYLE_REPORT_PATH"
 compile_status="${PIPESTATUS[0]}"
 
 # Get pycodestyle at runtime so that we don't rely on it being installed on the build server.
-#+ See: https://github.com/apache/spark/pull/1744#issuecomment-50982162
-# Updated to latest official version for pep8. pep8 is formally renamed to pycodestyle.
+# See: https://github.com/apache/spark/pull/1744#issuecomment-50982162
+# Updated to the latest official version of pep8. pep8 is formally renamed to pycodestyle.
 PYCODESTYLE_VERSION="2.3.1"
 PYCODESTYLE_SCRIPT_PATH="$SPARK_ROOT_DIR/dev/pycodestyle-$PYCODESTYLE_VERSION.py"
 PYCODESTYLE_SCRIPT_REMOTE_PATH="https://raw.githubusercontent.com/PyCQA/pycodestyle/$PYCODESTYLE_VERSION/pycodestyle.py"
@@ -60,9 +60,9 @@ export "PYLINT_HOME=$PYTHONPATH"
 export "PATH=$PYTHONPATH:$PATH"
 
 # There is no need to write this output to a file
-#+ first, but we do so so that the check status can
-#+ be output before the report, like with the
-#+ scalastyle and RAT checks.
+# first, but we do so so that the check status can
+# be output before the report, like with the
+# scalastyle and RAT checks.
 python "$PYCODESTYLE_SCRIPT_PATH" --config=dev/tox.ini $PATHS_TO_CHECK >> "$PYCODESTYLE_REPORT_PATH"
 pycodestyle_status="${PIPESTATUS[0]}"
 
@@ -73,7 +73,7 @@ else
 fi
 
 if [ "$lint_status" -ne 0 ]; then
-    echo "PYCODESTYLE checks failed."
+    echo "pycodestyle checks failed."
     cat "$PYCODESTYLE_REPORT_PATH"
     rm "$PYCODESTYLE_REPORT_PATH"
     exit "$lint_status"