doc: tcsetattr actions arg optiona.

* txr.1: the actions argument of tcsetattr is
optional and its defaulting is correctly described.
Fix the syntax synopsis which wrongly indicates that
it is required.

1 files changed, 1 insertions, 1 deletions

diff --git a/txr.1 b/txr.1
index 27d89308..327d2007 100644
--- a/txr.1
+++ b/txr.1
@@ -50705,7 +50705,7 @@ and
 .coNP Functions @ tcgetattr and @ tcsetattr
 .synb
 .mets (tcgetattr <> [ device ])
-.mets (tcsetattr < termios < actions <> [ device ])
+.mets (tcsetattr < termios >> [ actions <> [ device ]])
 .syne
 .desc
 The