tcp.7: Documentation revision for TCP_USER_TIMEOUT

mtk: Enke later noted that this patch provides better documentation
of longstanding behavior (rather documenting a change in behavior).

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man7/tcp.7 b/man7/tcp.7
index 8b78cb6e19251b1ef23910c507872b97c95853ce..cc08e3522af4d52212e499102285b682a28ae05d 100644 (file)
--- a/man7/tcp.7
+++ b/man7/tcp.7
@@ -1161,7 +1161,8 @@ This option takes an
 as an argument.
 When the value is greater than 0,
 it specifies the maximum amount of time in milliseconds that transmitted
-data may remain unacknowledged before TCP will forcibly close the
+data may remain unacknowledged, or bufferred data may remain untransmitted
+(due to zero window size) before TCP will forcibly close the
 corresponding connection and return
 .B ETIMEDOUT
 to the application.