@defopt yank-transform-functions
This variable is a list of functions. Each function is called (in
-order) with the string to be yanked as the parameter, and should
+order) with the string to be yanked as the argument, and should
return a (possibly transformed) string. This variable can be set
globally, but can also be used to create new commands that are
variations on @code{yank}. For instance, to create a command that