There is a message 'Port:' in Advanced Network Settings dialog and its resource
is being used for common, for example, the message is also showed up in Network
Settings dialog.

Strictly, it should be separated to each resource for these messages because
one for Network Settings dialog has ':' but one for Advanced Network Settings
dialog does not have it. In view of l10n and t9n, any message resources should
be corresponded one-by-one.