Do not make apache listen on forwarded port if no port set
Do not make apache listen on forwarded port if no port set

In cases where forwarding does not actually happen, the variable
@forwarded_port won't actually be set, and thus setting it will
cause a syntax error in the Apache config.

Change-Id: If1d20428413d63c0cb8935b2a2fe2f85978fdea9

ankita-kumari/mediawiki-vagrant,ankita-kumari/mediawiki-vagrant,stuartbman/mediawiki-vagrant,stuartbman/mediawiki-vagrant,stuartbman/mediawiki-vagrant,wikimedia/mediawiki-vagrant,physikerwelt/DRMF-vagrant,HarriAlasi/wiki3dviewer,physikerwelt/DRMF-vagrant,physikerwelt/DRMF-vagrant,wikimedia/mediawiki-vagrant,ankita-kumari/mediawiki-vagrant,HarriAlasi/wiki3dviewer,stuartbman/mediawiki-vagrant,HarriAlasi/wiki3dviewer,wikimedia/mediawiki-vagrant,stuartbman/mediawiki-vagrant,HarriAlasi/wiki3dviewer,ankita-kumari/mediawiki-vagrant,HarriAlasi/wiki3dviewer,wikimedia/mediawiki-vagrant,stuartbman/mediawiki-vagrant,ankita-kumari/mediawiki-vagrant,HarriAlasi/wiki3dviewer,HarriAlasi/wiki3dviewer,wikimedia/mediawiki-vagrant,wikimedia/mediawiki-vagrant,ankita-kumari/mediawiki-vagrant,physikerwelt/DRMF-vagrant,stuartbman/mediawiki-vagrant