Also check for name:arch in the selected packages

This fixes mintupdate telling you that it's installing a package, when it is in fact upgrading the :i386 version of the package on 64-bit systems. (Happens frequently with steam for example, which is i386 and often upgraded: mintupdate told that it's installing steam, when it upgraded steam:i386)

Also, Geany automatically added a newline at the end of your file.