su.1

[Lars Nooden]

That the option '-' is depreciated in favor of '-l' could be emphasized 
more.

Index: su.1
===================================================================
RCS file: /cvs/src/usr.bin/su/su.1,v
retrieving revision 1.24
diff -u -p -r1.24 su.1
--- su.1        31 May 2007 19:20:17 -0000      1.24
+++ su.1        8 Mar 2010 20:02:22 -0000
@@ -100,9 +100,9 @@ file (see
 The options are as follows:
 .Bl -tag -width Ds
 .It Fl
-Same as the
+(depreciated)  Use the
 .Fl l
-option (deprecated).
+option instead.
 .It Fl a Ar auth-type
 Specify an authentication type such as
 .Dq skey ,