@var{display-message} is non-@code{nil}, the button's help-echo string
is displayed. Any button with a non-@code{nil} @code{skip} property
is skipped over. Returns the button found, and signals an error if no
-buttons can be found. If @var{no-error} in non-@code{nil}, return nil
+buttons can be found. If @var{no-error} is non-@code{nil}, return nil
instead of signaling the error.
@end deffn
-@deffn Command backward-button n &optional wrap display-message
+@deffn Command backward-button n &optional wrap display-message no-error
Move to the @var{n}th previous button, or @var{n}th next button if
@var{n} is negative. If @var{n} is zero, move to the start of any
button at point. If @var{wrap} is non-@code{nil}, moving past either
@var{display-message} is non-@code{nil}, the button's help-echo string
is displayed. Any button with a non-@code{nil} @code{skip} property
is skipped over. Returns the button found, and signals an error if no
-buttons can be found. If @var{no-error} in non-@code{nil}, return nil
+buttons can be found. If @var{no-error} is non-@code{nil}, return nil
instead of signaling the error.
@end deffn