[RESEND][PATCH] sendfile.2: Fix description of the out_fd

[Akira Fujita <a-fujita-cUW4a6blu5N8UrSeD/g0lQ@public.gmane.org>]

commit cc56f7de7f00d188c7c4da1e9861581853b9e92f made
sendfile(2) can work with any output file.
Therefore the out_fd of sendfile(2) can refer to any file,
but current manual (man-pages-3.32) has not been changed so far.

Signed-off-by: Akira Fujita <a-fujita-cUW4a6blu5N8UrSeD/g0lQ@public.gmane.org>
---
 sendfile.2 |   16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)
--- man-pages-3.32-a/man2/sendfile.2	2010-12-03 16:01:59.000000000 +0900
+++ man-pages-3.32-b/man2/sendfile.2	2011-03-09 10:34:53.000000000 +0900
@@ -87,15 +87,17 @@ and the file offset will be updated by t
 .I count
 is the number of bytes to copy between the file descriptors.

-Presently (Linux 2.6.9):
-.IR in_fd ,
+.IR in_fd
 must correspond to a file which supports
 .BR mmap (2)-like
 operations
-(i.e., it cannot be a socket);
-and
-.I out_fd
-must refer to a socket.
+(i.e., it cannot be a socket).
+
+.IR out_fd
+was required to be a socket, but since Linux 2.6.33 it can be
+any file. If it is a regular file, then
+.BR sendfile()
+changes its offset appropriately.

 Applications may wish to fall back to
 .BR read (2)/ write (2)
@@ -165,7 +167,7 @@ to minimize the number of packets and to

 In Linux 2.4 and earlier,
 .I out_fd
-could refer to a regular file, and
+could also refer to a regular file, and
 .BR sendfile ()
 changed the current offset of that file.
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