Also, remove fuzz caused by varint->bigsize change.
For some reason my build machine sorts patches into another order, and fails
to patch:
patching file wire/gen_onion_wire_csv.104951
Hunk #1
succeeded at 52 with fuzz 1 (offset -19 lines).
patching file wire/gen_onion_wire_csv.104951
Hunk #1
FAILED at 8.
1 out of 1 hunk FAILED -- saving rejects to file wire/gen_onion_wire_csv.104951.rej
make: *** [wire/Makefile:60: wire/gen_onion_wire_csv] Error 1
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>