TRY/CATCH are macros, before returning the ENDTRY block must be executed
or the weirdest crashes can occur.
Change-Id: Ic56871322f8567263e2b8a81cce5a3c7042301b7
Fixes: v2.1.0rc0-2939-g5493fe0167 ("Convert ftype-tvbuff.c to ftype-protocol.c")
Reviewed-on: https://code.wireshark.org/review/30095
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>