Log the bubbled up error instead of printing it

Signed-off-by: Richard Wall <richard.wall@venafi.com>

cmd/root.go

@@ -29,8 +29,7 @@ func init() {
 // This is called by main.main(). It only needs to happen once to the rootCmd.
 func Execute() {
 	if err := rootCmd.Execute(); err != nil {
-		fmt.Println(err)
-		os.Exit(1)
+		logs.Log.Fatal(err)
 	}
 }