[2.7] bpo-31330: Clarify that RawTextHelpFormatter collapses repeated newlines. (GH-3272) (GH-3428)
Also provide a solution if the user wants to keep multiple blank lines.
(cherry picked from commit 397c467c49385023de36411194d381ac993bae1a)
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 1ea1f3f..c8a5941 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -419,7 +419,9 @@
-h, --help show this help message and exit
:class:`RawTextHelpFormatter` maintains whitespace for all sorts of help text,
-including argument descriptions.
+including argument descriptions. However, multiple new lines are replaced with
+one. If you wish to preserve multiple blank lines, add spaces between the
+newlines.
The other formatter class available, :class:`ArgumentDefaultsHelpFormatter`,
will add information about the default value of each of the arguments::