change binary name

Signed-off-by: Jörn Friedrich Dreyer <jfd@butonic.de>

opencloud/cmd/opencloud/main.go

@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/opencloud-eu/opencloud/opencloud/pkg/command"
+)
+
+func main() {
+	if err := command.Execute(); err != nil {
+		fmt.Fprintln(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+}