test/Scripts/macho-dump: Make hack for Python-2.4. [PR7995]
test/Scripts/macho-dump: Make hack for Python-2.4. [PR7995]

With Python-2.4, Reader::read64 always returns (unexpected) long integer.
FileCheck detects failure on test/MC/MachO among '0' and '0L'.

CentOS5(aka RHEL5 clone) provides python-2.4.

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@117637 91177308-0d34-0410-b5e6-96231b3b80d8

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