Index: doc/mixin.man.inc
===================================================================
diff -u -r54cdf1847245e3d6245a740808d1d6923fb78997 -r02949079584c317f6d5e6c138d609a66036ac198
--- doc/mixin.man.inc	(.../mixin.man.inc)	(revision 54cdf1847245e3d6245a740808d1d6923fb78997)
+++ doc/mixin.man.inc	(.../mixin.man.inc)	(revision 02949079584c317f6d5e6c138d609a66036ac198)
@@ -25,7 +25,7 @@
 Removes all [term "mixin class"]es from [arg [vset CMD]] and returns the list of removed [term "mixin class"]es. Clearing is equivalent to passing an empty list for [arg mixinSpecList] to 
 [const [vset MODIFIER]] [method {mixins set}].
 
-[def "[arg [vset CMD]] [const [vset MODIFIER]] [method {mixins delete}] [option -nocomplain] [arg specPattern]"]
+[def "[arg [vset CMD]] [const [vset MODIFIER]] [method {mixins delete}] [opt [option -nocomplain]] [arg specPattern]"]
 Removes a [term "mixin class"] from a current list of [term "mixin class"]es of [arg [vset CMD]] whose spec matches [arg specPattern]. [arg specPattern] can contain special matching chars (see [cmd "string match"]). [const [vset SCOPE]] [method "mixins delete"] will throw an error if there is no matching [term "mixin class"], unless [option -nocomplain] is set.
 
 [def "[arg [vset CMD]] [const [vset MODIFIER]] [method {mixins get}]"]