add == as a separator

Author: egonelbre

main.go

@@ -153,7 +153,7 @@ func Run(procs []Process) *Pipeline {
 func ParseArgs(args []string) (procs []Process) {
 	start := 0
 	for i, arg := range args {
-		if arg == ";;" {
+		if arg == ";;" || arg == "==" {
 			procs = append(procs, Process{
 				Cmd:  args[start],
 				Args: args[start+1 : i],