Fix syntax errors

Author: maropu

python/pyspark/sql/readwriter.py

@@ -140,7 +140,8 @@ def load(self, path=None, format=None, schema=None, **options):
 
         :param path: optional string or a list of string for file-system backed data sources.
         :param format: optional string for format of the data source. Default to 'parquet'.
-        :param schema: optional :class:`pyspark.sql.types.StructType` for the input schema or a DDL-formatted string.
+        :param schema: optional :class:`pyspark.sql.types.StructType` for the input schema
+                       or a DDL-formatted string.
         :param options: all other string options
 
         >>> df = spark.read.load('python/test_support/sql/parquet_partitioned', opt1=True,
@@ -184,7 +185,8 @@ def json(self, path, schema=None, primitivesAsString=None, prefersDecimal=None,
 
         :param path: string represents path to the JSON dataset, or a list of paths,
                      or RDD of Strings storing JSON objects.
-        :param schema: an optional :class:`pyspark.sql.types.StructType` for the input schema or a DDL-formatted string.
+        :param schema: an optional :class:`pyspark.sql.types.StructType` for the input schema or
+                       a DDL-formatted string.
         :param primitivesAsString: infers all primitive values as a string type. If None is set,
                                    it uses the default value, ``false``.
         :param prefersDecimal: infers all floating-point values as a decimal type. If the values
@@ -327,7 +329,8 @@ def csv(self, path, schema=None, sep=None, encoding=None, quote=None, escape=Non
         ``inferSchema`` option or specify the schema explicitly using ``schema``.
 
         :param path: string, or list of strings, for input path(s).
-        :param schema: an optional :class:`pyspark.sql.types.StructType` for the input schema or a DDL-formatted string.
+        :param schema: an optional :class:`pyspark.sql.types.StructType` for the input schema
+                       or a DDL-formatted string.
         :param sep: sets the single character as a separator for each field and value.
                     If None is set, it uses the default value, ``,``.
         :param encoding: decodes the CSV files by the given encoding type. If None is set,