venti(8): fix discussion of variables
R=rsc
http://codereview.appspot.com/6397046
diff --git a/man/man8/venti.8 b/man/man8/venti.8
index 6412a2d..d95edaa 100644
--- a/man/man8/venti.8
+++ b/man/man8/venti.8
@@ -241,9 +241,8 @@
.B /storage
Brief storage totals.
.TP
-.BI /set/ variable
-The current integer value of
-.IR variable .
+.BI /set
+Disable the values of all variables.
Variables are:
.BR compress ,
whether or not to compress blocks
@@ -263,7 +262,11 @@
The other variables exist only for debugging and
performance measurement.
.TP
-.BI /set/ variable / value
+.BI /set?name= variable
+Show the current setting of
+.IR variable .
+.TP
+.BI /set?name= variable &value= value
Set
.I variable
to