Update define-ibuffer-op doc string

* lisp/ibuf-macs.el (define-ibuffer-op):
Mention that BODY is evaluated with 'buf' bound to the actual
marked buffer being processed.

diff --git a/lisp/ibuf-macs.el b/lisp/ibuf-macs.el
index 2411f0588e36f63d9add76d466978326cbdf99ce..27e7af9559c2a07f2f2a22c81448334aa0e25a54 100644 (file)
--- a/lisp/ibuf-macs.el
+++ b/lisp/ibuf-macs.el
@@ -203,7 +203,8 @@ evaluates once for each marked buffer, MBUF, with MBUF current
 and saving the point.  If COMPLEX is non-nil, BODY evaluates
 without requiring MBUF current.
 BODY define the operation; they are forms to evaluate per each
-marked buffer.
+marked buffer.  BODY is evaluated with `buf' bound to the
+buffer object.
 
 \(fn OP ARGS DOCUMENTATION (&key INTERACTIVE MARK MODIFIER-P DANGEROUS OPSTRING ACTIVE-OPSTRING COMPLEX) &rest BODY)"
   (declare (indent 2) (doc-string 3))