"ulong" isn't defined on MacOS X (and probably isn't defined on some

"ulong" isn't defined on MacOS X (and probably isn't defined on some
other platforms, either) - don't use it.  Instead, use "guint32", as the
item in question is a 32-bit unsigned integer.

In fact, it's a 32-bit unsigned integer containing a bit set, and the
data type isn't a "long", so print it with "0x%08x", rather than
"0x%04lx", so that all 8 hex digits are printed, and so that the format
matches the data type.

It also doesn't have to be initialized - the only code path in which
it's used sets it.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@4842 f5534014-38df-0310-8fa8-9805f1628bb7