os: deprecate os.SEEK_SET, os.SEEK_CUR, and os.SEEK_END

CL/19862 introduced the same set of constants to the io package.
We should steer users away from the os.SEEK* versions and towards
the io.Seek* versions.

Updates #6885

Change-Id: I96ec5be3ec3439e1295c937159dadaf1ebfb2737
Reviewed-on: https://go-review.googlesource.com/21540
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/src/os/file.go b/src/os/file.go
index 6b1ecbc34e895b6695cc0b3b5566d5670c744274..74d3c9f9631de242c223966479eac0faddf00f2a 100644 (file)
--- a/src/os/file.go
+++ b/src/os/file.go
@@ -66,6 +66,8 @@ const (
 )
 
 // Seek whence values.
+//
+// Deprecated: Use io.SeekStart, io.SeekCurrent, and io.SeekEnd.
 const (
        SEEK_SET int = 0 // seek relative to the origin of the file
        SEEK_CUR int = 1 // seek relative to the current offset