Empty bucket listing error fix (#3)

* ls: change error code for no object found case

* fix main case for bucket path (tests, other List cases and README remaining)

* add bucket case for all cases

* rm comment lines

* add empty bucket test

* add changes to changelog

* add tests for cmds that use ls

e2e/du_test.go

@@ -312,6 +312,7 @@ func TestDiskUsageEmptyBucket(t *testing.T) {
 	cmd := s5cmd("du", "s3://"+bucket)
 	result := icmd.RunCmd(cmd)
 
+
 	result.Assert(t, icmd.Success)
 
 	assertLines(t, result.Stdout(), map[int]compareFunc{

e2e/ls_test.go

@@ -799,6 +799,4 @@ func TestEmptyBucket(t *testing.T) {
 	result := icmd.RunCmd(cmd)
 
 	result.Assert(t, icmd.Success)
-
-	assertLines(t, result.Stdout(), nil)
 }