pythongh-72631: Fix wrong documentation for GzipFile.peek (python#29820)

Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
Co-authored-by: Erlend E. Aasland <erlend@python.org>

Author: 3 people

Doc/library/gzip.rst

@@ -122,9 +122,7 @@ The module defines the following items:
    .. method:: peek(n)
 
       Read *n* uncompressed bytes without advancing the file position.
-      At most one single read on the compressed stream is done to satisfy
-      the call.  The number of bytes returned may be more or less than
-      requested.
+      The number of bytes returned may be more or less than requested.
 
       .. note:: While calling :meth:`peek` does not change the file position of
          the :class:`GzipFile`, it may change the position of the underlying