po files header, Plural-Forms

[Anna Jonna Armannsdottir <annaj hi is>]

The files I am sending to gnome-i18n have 
the following in the header: 
"Plural-Forms: nplurals=2; plural=1;" 

This means that the number of plural forms 
is two in the corresponding language, and 
that plural forms are used in the file. 

The files I am sending to Ubuntu Launchpad 
contain the following:
"Plural-Forms: nplurals=2; plural=n != 1;\n"

Does anybody have a clue about: =n != 1

Which one is the right one for gnome-i18n? 

-- 
Kindest Regards, Anna Jonna Ármannsdóttir,       %&   A: Because people read from top to bottom.
Unix System Aministration, Computing Services,   %&   Q: Why is top posting bad?
University of Iceland.