* files.el (file-relative-name): Doc fix.

Fixes: debbugs:15159

2 files changed, 4 insertions, 0 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 9f8ff6a064d..3b7ae9cbe66 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,7 @@
 2014-02-08  Lars Ingebrigtsen  <larsi@gnus.org>
 
+        * files.el (file-relative-name): Doc fix (bug#15159).
+
         * fringe.el (fringe-styles): Doc fix (bug#15239).
 
         * isearch.el (isearch-filter-predicate): Documentation typo fix
diff --git a/lisp/files.el b/lisp/files.el
index cb873b4342f..a8b2a204094 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -4469,6 +4469,8 @@ Uses `backup-directory-alist' in the same way as does
   "Convert FILENAME to be relative to DIRECTORY (default: `default-directory').
 This function returns a relative file name which is equivalent to FILENAME
 when used with that default directory as the default.
+If FILENAME is a relative file name, it will be interpreted as existing in
+`default-directory'.
 If FILENAME and DIRECTORY lie on different machines or on different drives
 on a DOS/Windows machine, it returns FILENAME in expanded form."
   (save-match-data