patch to fix py-terminado missing TEST_DEPENDS

I'm working through testing a py-tornado update and py-terminado does not
pass tests by default since they depend on bash. So here is a quick patch
to add shells/bash to the TEST_DEPENDS.

cc shadchin

--Kurt

Index: Makefile
===================================================================
RCS file: /cvs/ports/www/py-terminado/Makefile,v
retrieving revision 1.3
diff -u -p -r1.3 Makefile
--- Makefile 3 Jan 2017 19:28:49 -0000 1.3
+++ Makefile 30 Mar 2019 21:23:17 -0000
@@ -22,7 +22,8 @@ MODPY_PI = Yes
RUN_DEPENDS += devel/py-ptyprocess${MODPY_FLAVOR} \
www/py-tornado${MODPY_FLAVOR}
TEST_DEPENDS += ${RUN_DEPENDS} \
- devel/py-nose${MODPY_FLAVOR}
+ devel/py-nose${MODPY_FLAVOR} \
+ shells/bash

FLAVORS = python3
FLAVOR ?=