test: Fix issues with new version of pycodestyle (VPP-1232)

- Ignore warnings W504 (newline after binary operator) which otherwise
  occurs a significant number of times.
- Fix two instances of lines >79 chars.

Change-Id: I8cef56f8afc237187995e638e610c8c0554e2bb5
Signed-off-by: Chris Luke <chrisy@flirble.org>
diff --git a/test/Makefile b/test/Makefile
index cbeec79..88192e7 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -196,7 +196,7 @@
 	@virtualenv $(PYTHON_VENV_PATH) -p $(PYTHON_INTERP)
 	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate && pip install pycodestyle"
 	@bash -c "source $(PYTHON_VENV_PATH)/bin/activate &&\
-		pycodestyle --show-source --ignore=E126,E241,E226,E305,E704,E741,E722 -v $(WS_ROOT)/test/*.py ||\
+		pycodestyle --show-source --ignore=W504,E126,E241,E226,E305,E704,E741,E722 -v $(WS_ROOT)/test/*.py ||\
 		(echo \"*******************************************************************\" &&\
 		 echo \"* Test framework PEP8 compliance check FAILED \" &&\
 	         echo \"*******************************************************************\" &&\