Update CHANGES and documentation for #1751.

CHANGES

@@ -51,6 +51,8 @@ Features added
 * #2235: ``needs_sphinx`` supports micro version comparison
 * #2282: Add "language" attribute to html tag in the "basic" theme
 * #1779: Add EPUB 3 builder
+* #1751: Add :confval:`todo_link_only` to avoid file path and line indication on
+  :rst:dir:`todolist`.
 
 Bugs fixed
 ----------

doc/ext/todo.rst

@@ -33,3 +33,11 @@ There is also an additional config value:
 
    If this is ``True``, :rst:dir:`todo` and :rst:dir:`todolist` produce output,
    else they produce nothing.  The default is ``False``.
+
+.. confval:: todo_link_only
+
+   If this is ``True``, :rst:dir:`todolist` produce output without file path and line,
+   The default is ``False``.
+
+   .. versionadded:: 1.4
+