Generate Stringer representation using new versions, omit from test coverage

Author: ti-mo

Makefile

@@ -29,6 +29,10 @@ else
 	go test -v -race -coverprofile=cover-int.out -covermode=atomic -tags=integration -exec sudo ./...
 endif
 
+# Remove coverage output from files generated by Stringer.
+	sed -i '/_string.go/d' cover-int.out
+	go tool cover -func=cover-int.out
+
 .PHONY: coverhtml-integration
 coverhtml-integration: integration
 	go tool cover -html=cover-int.out
@@ -44,6 +48,8 @@ bench-integration:
 cover: cover.out
 cover.out: $(SOURCES)
 	go test -coverprofile=cover.out -covermode=atomic ./...
+# Remove coverage output from files generated by Stringer.
+	sed -i '/_string.go/d' cover.out
 	go tool cover -func=cover.out
 
 .PHONY: coverhtml