4.4.x has its own branch; the trunk is for 4.5.x.
Add some additional changes.
We don't define PRIu8 or PRIx8 if the C environment doesn't; don't use it.

The right format to use to print 8-bit quantities isn't
implementation-dependent, so no need to use the PRIu8 and PRIx8 macros.

There's also no need for an empty string after PRIu64.  Separate it with
space from the strings with which it's being concatenated, however; we
do that elsewhere.
Declare vxlan_print() and otv_print() in interface.h, and fix its definition.

They doesn't use their third argument, and they aren't being passed a
third argument, so get rid of that argument.
Fix handling of V3 and V4 BPDUs.

Make the offsets and lengths 32-bit, so that they don't overflow.

Pull the handling of V4 fields into its own routine.  Call it only if
the packet's been identified as a V4 packet and the length is sane; call
the routine to handle V3 fields before we do any V4 work.
Get rid of declarations in the middle of code; they're not valid C.

Reviewed-By: Guy Harris <guy@alum.mit.edu>