minor doc tweak

Author: cmaloney

Doc/library/os.rst

@@ -1668,8 +1668,7 @@ or `the MSDN <https://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Windo
    success, returns the number of bytes read. Less bytes may be read than the
    size of the buffer. The underlying system call will be retried when
    interrupted by a signal, unless the signal handler raises an exception.
-   Other errors will not be retried and an error will
-   be raised.
+   Other errors will not be retried and an error will be raised.
 
    Returns 0 if the fd is at end of file or if the provided buffer is
    length 0 (can be used to check for errors without reading data). Never