Remove refrerence to dashes from definition of valid identifiers

c26a3b4f · Andreas Klöckner · c8af2f0c · c26a3b4f
Commit c26a3b4f authored 7 years ago by Andreas Klöckner
--- a/doc/flow.rst
+++ b/doc/flow.rst
@@ -687,7 +687,7 @@ The following page types are predefined:
 .. |id-page-attr| replace::

    A short identifying name, unique within the page group. Alphanumeric
-    with dashes and underscores, no spaces.
+    with underscores, no spaces.

 .. |title-page-attr| replace::