Aegir and PHP5

If you try to run Aegir with PHP5 and you get this warning:

Parse error: syntax error, unexpected T_ABSTRACT, expecting ')'  

in /var/cache/midgard/bergietest/1-5-5-0.php(991) : eval()'d code 

(5) : eval()'d code on line 538

Edit /NemeinRCS/xml_rcs_functions snippet:

Line 538 is:

abstract =>  "CDATA",

Replace it with:

"abstract" =>  "CDATA",