minor cleanup of dock manpage

bbidulock · bbidulock · commit 7f4f4ab55a7a · 2019-10-26T06:49:06.000-06:00
diff --git a/doc/adwm-dock.5.in b/doc/adwm-dock.5.in
@@ -505,7 +505,7 @@ panels with
 .Sh BUGS
 No outstanding bugs.
 .Sh HISTORY
-.Cm @PACKAGE@
+.Nm @PACKAGE_NAME@
 configuration began with the simple X Resource scheme
 provided by
 .Xr echinus 1
