recommend 2-argument urlto whenever possible

diff --git a/doc/plugins/write.mdwn b/doc/plugins/write.mdwn
index 3cab7588ec99c7a83fa6755fe3870fc93d6fb4d3..adc20af72331ec83e208d73d3772308a37263a3b 100644 (file)
--- a/doc/plugins/write.mdwn
+++ b/doc/plugins/write.mdwn
@@ -988,6 +988,9 @@ Construct a relative url to the first parameter from the page named by the
 second. The first parameter can be either a page name, or some other
 destination file, as registered by `will_render`.
 
+Provide a second parameter whenever possible, since this leads to better
+behaviour for the [[plugins/po]] plugin and `file:///` URLs.
+
 If the second parameter is not specified (or `undef`), the URL will be
 valid from any page on the wiki, or from the CGI; if possible it'll
 be a path starting with `/`, but an absolute URL will be used if