Cleanup open pipes if logging binary fails to start

Signed-off-by: Akshat Kumar <kshtku@amazon.com>

runtime/io.go

@@ -18,6 +18,7 @@ package runtime
 
 import (
 	"net/url"
+	"os"
 	"os/exec"
 )
 
@@ -42,3 +43,11 @@ func NewBinaryCmd(binaryURI *url.URL, id, ns string) *exec.Cmd {
 
 	return cmd
 }
+
+// CloseFiles closes any files passed in.
+// It it used for cleanup in the event of unexpected errors.
+func CloseFiles(files ...*os.File) {
+	for _, file := range files {
+		file.Close()
+	}
+}