[csw-maintainers] New features in checkpkg

[Maciej (Matchek) Blizinski]

Just committed two new features:

1. Allowing missing libm.so.2 (64-bit binaries can't find it on Solaris 9 x86).

2. Checking the actual architecture of binaries.

There are 3 places in a package which the architecture is declared:
the file name, the pkginfo and the content of the binary.  So far only
the first two were checked.  From now on, all three must be in sync
for the package to pass.