cli: parse and resolve flags

Copy all flags from upstream. The machinectl flag is dropped as it does nothing. the flag package is used to reduce complexity since we do not care about compatibility with upstream.

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>

main.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+	"flag"
+)
+
+var Version = "impure"
+
+func main() {
+	flag.Parse()
+	copyArgs()
+}