add log.Register(INFO) and go-arg support

Signed-off-by: Jeff Carr <jcarr@wit.com>

digitalocean/args.go

@@ -0,0 +1,27 @@
+package digitalocean
+
+// initializes logging and command line options
+
+import (
+	arg "github.com/alexflint/go-arg"
+	log "go.wit.com/log"
+)
+
+var INFO log.LogFlag
+var argDo ArgsDo
+
+// This struct can be used with the go-arg package
+type ArgsDo struct {
+	DigitalOceanTimer bool `arg:"--digitalocean-poll-interval" help:"how often to poll droplet status (default 60 seconds)"`
+}
+
+func init() {
+	arg.Register(&argDo)
+
+	INFO.B = false
+	INFO.Name = "INFO"
+	INFO.Subsystem = "digitalocean"
+	INFO.Desc = "Enable log.Info()"
+
+	INFO.Register()
+}