VOL-4836 - Source edits to trigger a jenkins job.

Makefile
--------
  o Add copyright notice and common variables/includes.
  o Added a conditional variable to support local golang use w/o docker.
  o Replace variable decoration ${GO} with $(GO) -- vars are make not shell.
  o Added makefile target sterile to remove the golang module cache.

internal/pkg/commands/log.go
----------------------------
  o Fix content problem reported by gofmt -d.

makefiles/
----------
  o Added LOCAL_LINT=1 to support source linting outside of docker.
  o Also copy in linting libraries to check licenses, shell, yaml, etc.
  o Added todo.mk to document 'go mod vendor' removes the vendor directory under revision control.

Change-Id: Ifacba55c19f5391310ae247c36263c93e1249446
diff --git a/internal/pkg/commands/log.go b/internal/pkg/commands/log.go
index 9626bfa..56c27cd 100644
--- a/internal/pkg/commands/log.go
+++ b/internal/pkg/commands/log.go
@@ -1399,4 +1399,5 @@
 	return nil
 }
 
-// [EOF]
\ No newline at end of file
+// NOP-job: 1
+// [EOF]