CLN: applied gfyoung's feedback

doc/source/whatsnew/v0.24.0.txt

@@ -147,7 +147,7 @@ MultiIndex
 I/O
 ^^^
 
-- (Only for Windows) Bug in :meth:`DataFrame.to_csv`, in which all `\n`s are converted to `\r\n` (:issue:`20353`)
+- Bug in :meth:`DataFrame.to_csv`, in which all `\n`s are converted to `\r\n` on Windows (:issue:`20353`)
 -
 -
 

pandas/tests/io/formats/test_to_csv.py

@@ -295,22 +295,24 @@ def test_to_csv_string_with_lf(self):
         df = pd.DataFrame(data)
 
         with tm.ensure_clean('lf_test.csv') as path:
-            expected_bin = \
-                b'int,str_lf\n' \
-                b'1,abc\n' \
-                b'2,"d\nef"\n' \
+            expected_bin = (
+                b'int,str_lf\n'
+                b'1,abc\n'
+                b'2,"d\nef"\n'
                 b'3,"g\nh\n\ni"\n'
+            )
 
             df.to_csv(path, index=False)
             with open(path, 'rb') as f:
                 assert f.read() == expected_bin
 
             # 'line_terminator' should not change inner element
-            expected_bin = \
-                b'int,str_lf\r\n' \
-                b'1,abc\r\n' \
-                b'2,"d\nef"\r\n' \
+            expected_bin =(
+                b'int,str_lf\r\n'
+                b'1,abc\r\n'
+                b'2,"d\nef"\r\n'
                 b'3,"g\nh\n\ni"\r\n'
+            )
 
             df.to_csv(path, line_terminator='\r\n', index=False)
             with open(path, 'rb') as f:
@@ -325,21 +327,23 @@ def test_to_csv_string_with_crlf(self):
         df = pd.DataFrame(data)
 
         with tm.ensure_clean('crlf_test.csv') as path:
-            expected_bin = \
-                b'int,str_crlf\n' \
-                b'1,abc\n' \
-                b'2,"d\r\nef"\n' \
+            expected_bin = (
+                b'int,str_crlf\n'
+                b'1,abc\n'
+                b'2,"d\r\nef"\n'
                 b'3,"g\r\nh\r\n\r\ni"\n'
+            )
 
             df.to_csv(path, index=False)
             with open(path, 'rb') as f:
                 assert f.read() == expected_bin
 
-            expected_bin = \
-                b'int,str_crlf\r\n' \
-                b'1,abc\r\n' \
-                b'2,"d\r\nef"\r\n' \
+            expected_bin = (
+                b'int,str_crlf\r\n'
+                b'1,abc\r\n'
+                b'2,"d\r\nef"\r\n'
                 b'3,"g\r\nh\r\n\r\ni"\r\n'
+            )
 
             df.to_csv(path, line_terminator='\r\n', index=False)
             with open(path, 'rb') as f: