@itemx --funcall=@var{function}
@opindex --funcall
@cindex call Lisp functions, command-line argument
-Call Lisp function @var{function} with no arguments.
+Call Lisp function @var{function}. If it is an interactive function
+(a command), it reads the arguments interactively just as if you had
+called the same function with a key sequence. Otherwise, it calls the
+function with no arguments.
@item --eval=@var{expression}
@opindex --eval