Use root to launch su request Activity on Q

app/src/main/java/com/topjohnwu/magisk/utils/Utils.java

@@ -32,6 +32,7 @@ import com.topjohnwu.superuser.Shell;
 import com.topjohnwu.superuser.internal.UiThreadHandler;
 import com.topjohnwu.superuser.io.SuFile;
 
+import java.util.List;
 import java.util.Locale;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
@@ -165,4 +166,19 @@ public class Utils {
             toast(R.string.open_link_failed_toast, Toast.LENGTH_SHORT);
         }
     }
+
+    public static String argsToCommand(List<String> args) {
+        StringBuilder sb = new StringBuilder();
+        for (String s : args) {
+            if (s.contains(" ")) {
+                sb.append('"').append(s).append('"');
+            } else {
+                sb.append(s);
+            }
+            sb.append(' ');
+        }
+        sb.deleteCharAt(sb.length() - 1);
+        return sb.toString();
+    }
+
 }