* lisp/ibuf-ext.el (ibuffer-copy-filename-as-kill): Allow the
optional parameter to be nil (bug#21576).
(if (zerop (ibuffer-count-marked-lines))
(message "No buffers marked; use 'm' to mark a buffer")
(let ((ibuffer-copy-filename-as-kill-result "")
(if (zerop (ibuffer-count-marked-lines))
(message "No buffers marked; use 'm' to mark a buffer")
(let ((ibuffer-copy-filename-as-kill-result "")
- (type (cond ((zerop arg)
+ (type (cond ((or (null arg) (zerop arg))
'full)
((= arg 4)
'relative)
'full)
((= arg 4)
'relative)