Recently upgraded to 11.24 (and jolly good it is too so far), but one problem I'm experiencing is that when using the Apache Global Configuration option under Service Configuration -> Apache Configuration, I get the following errors upon saving the new config.

I've looked at the httpd.conf file itself, tried rebuilding it with /scripts/buildhttpdconf, and the same problem occurs. I can't see anything obvious.

Code:
Rebuilding httpd.conf...

Initial configuration generation failed with the following message:

--- Syntax Not OK ---

Rebuilding configuration without any local modifications.

Failed to generate a syntactically correct Apache configuration.
Bad configuration file located at /usr/local/apache/conf/httpd.conf.1225469761
Error:
--- Syntax Not OK ---
Yet Apache restarts just fine - but no changes are actually made to the Apache configuration file.

I don't think I've made any manual edits to the config file in the past..