* lisp/vc/vc-mtn.el:

* lisp/vc/vc-mtn.el:
* lisp/vc/vc-hg.el:
* lisp/vc/vc-git.el:
* lisp/vc/vc-dir.el:
* lisp/vc/vc-cvs.el:
* lisp/vc/vc-bzr.el:
* lisp/vc/vc-arch.el:
* lisp/vc/vc.el: Replace lexical-let by lexical-binding.
* lisp/minibuffer.el (lazy-completion-table): Avoid ((λ ...) ...).
* lisp/emacs-lisp/cl-macs.el (lexical-let): Fix use in lexical-binding.
* lisp/emacs-lisp/cconv.el (cconv-analyse-form): Warn use of ((λ ...) ...).