Fix minor bugs in vc.

* vc/vc-mtn.el (vc-mtn-root):
* vc/vc-svn.el (vc-svn-registered): Make FILE absolute.

lisp/ChangeLog

+2014-12-05  Michael Albinus  <michael.albinus@gmx.de>
+
+	* vc/vc-mtn.el (vc-mtn-root):
+	* vc/vc-svn.el (vc-svn-registered): Make FILE absolute.
+
 2014-12-05  Stefan Monnier  <monnier@iro.umontreal.ca>
 	* progmodes/sh-script.el (sh-smie-sh-rules): Go back to the beginning
 	of the whole pipe when indenting an opening keyword after a |.
 	Generalize this treatment to opening keywords like "while" (bug#18031).
-2014-12-05  Stefan Monnier  <monnier@iro.umontreal.ca>
 2014-12-05  Stefan Monnier  <monnier@iro.umontreal.ca>
 	* simple.el (newline): Place the hook buffer-locally,

lisp/vc/vc-mtn.el

@@ -79,7 +79,8 @@ If nil, use the value of `vc-diff-switches'.  If t, use no switches."
 (defun vc-mtn-checkout-model (_files) 'implicit)
 
 (defun vc-mtn-root (file)
-  (setq file (if (file-directory-p file)
+  (setq file (expand-file-name file)
+	file (if (file-directory-p file)
                  (file-name-as-directory file)
                (file-name-directory file)))
   (or (vc-file-getprop file 'vc-mtn-root)

lisp/vc/vc-svn.el

@@ -135,6 +135,7 @@ If you want to force an empty list of arguments, use t."
 
 (defun vc-svn-registered (file)
   "Check if FILE is SVN registered."
+  (setq file (expand-file-name file))
   (when (vc-svn-root file)
     (with-temp-buffer
       (cd (file-name-directory file))