The Project namespace of pt.wikipedia.org should be changed to "Wikipédia", which is the name of the project in Portuguese (this is similar to T21364 about pt.wikibooks).
If I remember correctly, this can be done changing the
following:
'wgMetaNamespace' => array( #... 'ptwiki' => 'Wikipédia', #... ), 'wgMetaNamespaceTalk' => array( #... 'ptwiki' => 'Wikipédia_Discussão', #... ),
Besides this, it would be interesting to have the old name "Wikipedia" as an
alias for the project namespace (this way we don't need to change every link to pages in this namespace at pt.wikipedia).
'wgNamespaceAliases' => array( #... 'Wikipedia' => NS_PROJECT, 'Wikipedia_Discussão' => NS_PROJECT_TALK, #... ),
The change was approved by the community: pt:Wikipédia:Esplanada/propostas/Finalizar a tradução de "Wikipedia" para "Wikipédia" (30nov2010)
Have a nice week!