/etc/gforge/httpd.conf.d/ is in gforge-web-apache2 5.1.1-2.
This file is owned by root:root, with mode 0o755.
..
/etc/gforge/httpd.conf.d/01-namevhost.conf
/etc/gforge/httpd.conf.d/02-config-main.conf
/etc/gforge/httpd.conf.d/10-vhosts-main.conf
/etc/gforge/httpd.conf.d/20-vhosts-lists.conf
/etc/gforge/httpd.conf.d/30-vhosts-projects.conf
/etc/gforge/httpd.conf.d/40-vhosts-extra.conf
/etc/gforge/httpd.conf.d/README.generated
/etc/gforge/httpd.conf.d/auth-main.inc
/etc/gforge/httpd.conf.d/auth-projects.inc
/etc/gforge/httpd.conf.d/block-trace.inc
/etc/gforge/httpd.conf.d/lists-vhost-plugin-mailman.inc
/etc/gforge/httpd.conf.d/log.inc
/etc/gforge/httpd.conf.d/plugin-fckeditor.inc
/etc/gforge/httpd.conf.d/plugin-generic.inc
/etc/gforge/httpd.conf.d/plugin-mediawiki.inc
/etc/gforge/httpd.conf.d/plugin-scmbzr.inc
/etc/gforge/httpd.conf.d/plugin-scmdarcs.inc
/etc/gforge/httpd.conf.d/plugin-scmgit.inc
/etc/gforge/httpd.conf.d/plugin-scmsvn.inc
/etc/gforge/httpd.conf.d/projects-in-mainvhost.inc
/etc/gforge/httpd.conf.d/ssl-off.inc
/etc/gforge/httpd.conf.d/ssl-on.inc
/etc/gforge/httpd.conf.d/ssl-really-on.inc