MAINT: Makefile has `style` target now.

.gitlab-ci.yml

@@ -107,7 +107,7 @@ style:
   stage: style
   image: $CI_REGISTRY_IMAGE
   script:
-      - autopep8 -ar --diff --exit-code --exclude swagger_client .
+      - make style
   allow_failure: true
 
 unittest:

Makefile

@@ -34,3 +34,7 @@ install:
 
 unittest:
 	pytest-3 unittests
+
+style:
+	autopep8 -ar --diff --exit-code --exclude swagger_client .
+.PHONY: style