Address review comment.

Author: serhiy-storchaka

Doc/library/base64.rst

@@ -61,15 +61,13 @@ POST request.
    This allows an application to e.g. generate URL or filesystem safe Base64
    strings.  The default is ``None``, for which the standard Base64 alphabet is used.
 
+   If *wrapcol* is non-zero, insert a newline (``b'\n'``) character
+   after at most every *wrapcol* characters.
+   If *wrapcol* is zero (default), do not add any newlines.
+
    May assert or raise a :exc:`ValueError` if the length of *altchars* is not 2.  Raises a
    :exc:`TypeError` if *altchars* is not a :term:`bytes-like object`.
 
-   If *wrapcol* is non-zero, the output will be represented in lines of
-   no more than *wrapcol* characters each, separated by a newline
-   (``b'\n'``) character.
-   If *wrapcol* is zero (default), the output will be represented as
-   a single line.
-
    .. versionchanged:: next
       Added the *wrapcol* parameter.
 
@@ -223,11 +221,9 @@ Refer to the documentation of the individual functions for more information.
    instead of 4 consecutive spaces (ASCII 0x20) as supported by 'btoa'. This
    feature is not supported by the "standard" Ascii85 encoding.
 
-   If *wrapcol* is non-zero, the output will be represented in lines of
-   no more than *wrapcol* characters each, separated by a newline
-   (``b'\n'``) character.
-   If *wrapcol* is zero (default), the output will be represented as
-   a single line.
+   If *wrapcol* is non-zero, insert a newline (``b'\n'``) character
+   after at most every *wrapcol* characters.
+   If *wrapcol* is zero (default), do not add any newlines.
 
    *pad* controls whether the input is padded to a multiple of 4
    before encoding. Note that the ``btoa`` implementation always pads.

Doc/library/binascii.rst

@@ -72,11 +72,9 @@ The :mod:`binascii` module defines the following functions:
    Convert binary data to a line(s) of ASCII characters in base64 coding,
    as specified in :rfc:`4648`.
 
-   If *wrapcol* is non-zero, the output will be represented in lines of
-   no more than *wrapcol* characters each, separated by a newline
-   (``b'\n'``) character.
-   If *wrapcol* is zero (default), the output will be represented as
-   a single line.
+   If *wrapcol* is non-zero, insert a newline (``b'\n'``) character
+   after at most every *wrapcol* characters.
+   If *wrapcol* is zero (default), do not add any newlines.
 
    If *newline* is true (default), a newline character will be added
    at the end of the output.

Lib/base64.py

@@ -52,9 +52,8 @@ def b64encode(s, altchars=None, *, wrapcol=0):
     alternative alphabet for the '+' and '/' characters.  This allows an
     application to e.g. generate url or filesystem safe Base64 strings.
 
-    If wrapcol is non-zero, the output will be represented in lines of
-    no more than wrapcol characters each, separated by a newline (b'\\n')
-    character.
+    If wrapcol is non-zero, insert a newline (b'\\n') character after at most
+    every wrapcol characters.
     """
     encoded = binascii.b2a_base64(s, wrapcol=wrapcol, newline=False)
     if altchars is not None:
@@ -331,9 +330,8 @@ def a85encode(b, *, foldspaces=False, wrapcol=0, pad=False, adobe=False):
     instead of 4 consecutive spaces (ASCII 0x20) as supported by 'btoa'. This
     feature is not supported by the "standard" Adobe encoding.
 
-    If wrapcol is non-zero, the output will be represented in lines of
-    no more than wrapcol characters each, separated by a newline (b'\\n')
-    character.
+    If wrapcol is non-zero, insert a newline (b'\\n') character after at most
+    every wrapcol characters.
 
     pad controls whether the input is padded to a multiple of 4 before
     encoding. Note that the btoa implementation always pads.