Document change in whatsnew file

Marco Gorelli · Marco Gorelli · commit a6423635b2eb · 2019-08-14T14:21:17.000+01:00
diff --git a/doc/source/whatsnew/v0.25.1.rst b/doc/source/whatsnew/v0.25.1.rst
@@ -105,7 +105,7 @@ I/O
 ^^^
 
 - Avoid calling ``S3File.s3`` when reading parquet, as this was removed in s3fs version 0.3.0 (:issue:`27756`)
--
+- Advise user to use ``header=None`` rather than ``header=-1`` for no header in ``pandas.read_csv`` (:issue:`27779`)
 -
 
 Plotting

Original file line number	Diff line number	Diff line change
`@@ -105,7 +105,7 @@ I/O`
`105`	`105`	`^^^`
`106`	`106`
`107`	`107`	- Avoid calling ``S3File.s3`` when reading parquet, as this was removed in s3fs version 0.3.0 (:issue:`27756`)
`108`		`--`
	`108`	+- Advise user to use ``header=None`` rather than ``header=-1`` for no header in ``pandas.read_csv`` (:issue:`27779`)
`109`	`109`	`-`
`110`	`110`
`111`	`111`	`Plotting`