No equivalent hook to rss_tag_pre in buddypress

[shawfactor]

I was trying to extend a plugin I am writing to support buddypress. One part of the functionlity is that it makes RSS feeds human readbale by adding an XSL stylesheet. This is possible in wordpress by adding a stylesheet declaration after the xml output e.g.

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="template.xsl"?>

by using the rss_tag_pre action. However this hook does not exist in buddypress. Is it possible to add an equivalent hook?

Add an action hook before the <rss/> tag of Activity feeds

Trac ticket: ​https://buddypress.trac.wordpress.org/ticket/8995

[imath]

In 13582:

Add an action hook before the <rss/> tag of Activity feeds

Props shawfactor

Fixes #8995
Closes ​https://github.com/buddypress/buddypress/pull/164