Many small edits.
diff --git a/man/man1/plumb.1 b/man/man1/plumb.1
index 4885b90..3fa1625 100644
--- a/man/man1/plumb.1
+++ b/man/man1/plumb.1
@@ -76,14 +76,10 @@
 .B action=showdata
 attribute to the message.
 .SH FILES
-.TF /usr/$user/lib/plumbing
+.TF $HOME/lib/plumbing
 .TP
-.B /usr/$user/lib/plumbing
+.B $HOME/lib/plumbing
 default rules file
-.TP
-.B /mnt/plumb
-mount point for
-.IR plumber (4).
 .SH SOURCE
 .B \*9/src/cmd/plumb
 .SH "SEE ALSO"