Remove surplus empty lines and convert more files to new optional arg style.
diff --git a/Doc/library/fcntl.rst b/Doc/library/fcntl.rst
index 0e69407..a397afc 100644
--- a/Doc/library/fcntl.rst
+++ b/Doc/library/fcntl.rst
@@ -1,4 +1,3 @@
-
 :mod:`fcntl` --- The :func:`fcntl` and :func:`ioctl` system calls
 =================================================================
 
@@ -65,13 +64,13 @@
    so long as the buffer you pass is as least as long as what the operating system
    wants to put there, things should work.
 
-   If *mutate_flag* is true (the default), then the buffer is (in effect) passed to the
-   underlying :func:`ioctl` system call, the latter's return code is passed back to
-   the calling Python, and the buffer's new contents reflect the action of the
-   :func:`ioctl`.  This is a slight simplification, because if the supplied buffer
-   is less than 1024 bytes long it is first copied into a static buffer 1024 bytes
-   long which is then passed to :func:`ioctl` and copied back into the supplied
-   buffer.
+   If *mutate_flag* is true (the default), then the buffer is (in effect) passed
+   to the underlying :func:`ioctl` system call, the latter's return code is
+   passed back to the calling Python, and the buffer's new contents reflect the
+   action of the :func:`ioctl`.  This is a slight simplification, because if the
+   supplied buffer is less than 1024 bytes long it is first copied into a static
+   buffer 1024 bytes long which is then passed to :func:`ioctl` and copied back
+   into the supplied buffer.
 
    An example::