Force behave to use older version of its dependency

Behave by default just grabs the latest parse_type package as part of
the setup requirement. However, the newest parse_type package (0.4.2)
uses a new convention on how it handles packaging which is not in the
older python versions before 2.7.13. Since we're in python 2.7.12, we
break.

Force requirement to use an older version as a hack to bypass this
issue.
Signed-off-by: NMarbin Tan <mtan@pivotal.io>

gpMgmt/bin/Makefile

@@ -216,7 +216,11 @@ $(BEHAVE_BIN):
 	@cd $(PYLIB_SRC_EXT)/$(SETUP_TOOLS_DIR)/ && PYTHONPATH=$(PYTHONSRC_INSTALL_PYTHON_PATH) python setup.py install --prefix $(PYTHONSRC_INSTALL)
 	@cd $(PYLIB_SRC_EXT)/$(PARSE_DIR)/ && PYTHONPATH=$(PYTHONSRC_INSTALL_PYTHON_PATH) python setup.py install --prefix $(PYTHONSRC_INSTALL)
 	@cd $(PYLIB_SRC_EXT)/$(ARG_PARSE_DIR)/ && PYTHONPATH=$(PYTHONSRC_INSTALL_PYTHON_PATH) python setup.py install --prefix $(PYTHONSRC_INSTALL)
-	@cd $(PYLIB_SRC_EXT)/$(BEHAVE_DIR)/ && PYTHONPATH=$(PYTHONSRC_INSTALL_PYTHON_PATH) python setup.py install --prefix $(PYTHONSRC_INSTALL)
+	# We're forcing a change in the requirements since we're in python
+	# 2.7.12. There's a new syntax in the python requirements for
+	# parse_type 0.4.2 which breaks if you're under 2.7.13
+	@cd $(PYLIB_SRC_EXT)/$(BEHAVE_DIR)/ && sed -i 's/parse_type>=0.3.4/parse_type==0.4.1/' setup.py \
+		&& PYTHONPATH=$(PYTHONSRC_INSTALL_PYTHON_PATH) python setup.py install --prefix $(PYTHONSRC_INSTALL)
 	@echo "--- behave done"
 
 PYTHON_FILES=`grep -l --exclude=Makefile --exclude=gplogfilter "/bin/env python" *`\