chore: add make style target for gofmt formatting

Makefile

@@ -4,7 +4,7 @@ PACKAGER = $(shell id -u):$(shell id -g)
 DOCKER_VERSION = $(shell docker version --format '{{.Client.Version}}')
 BASE_IMAGE = $$(awk -F= '$$1=="ID" { print $$2 ;}' /etc/os-release):$$(awk -F= '$$1=="VERSION_ID" { print $$2 ;}' /etc/os-release | tr -d '"')
 NO_CACHE = false
-TCMALLOC = 
+TCMALLOC =
 PORTABLE = 0
 ARGS ?=
 
@@ -80,3 +80,6 @@ clean-bin-image:
 
 clean-deb-image:
 	- docker rmi $(DEB_IMAGE)
+
+style:
+	find . -name "*.go" -exec gofmt -w {} \;