contrib/jenkins.sh: make pylint warn about unnecessary semicolon

Change-Id: I7793e30501ad109c95b207cbfada50596de17cda
Related: OS#5292
diff --git a/contrib/jenkins.sh b/contrib/jenkins.sh
index 91dcdd2..e2e04e7 100755
--- a/contrib/jenkins.sh
+++ b/contrib/jenkins.sh
@@ -38,6 +38,7 @@
 python -m pylint --errors-only \
 	--disable E1102 \
 	--disable E0401 \
+	--enable W0301 \
 	pySim *.py
 
 # attempt to build documentation