I think the "and" is missing.

src/main/res/values/strings.xml

@@ -284,7 +284,7 @@
     <string name="common_rename">Rename</string>
     <string name="common_remove">Remove</string>
     <string name="confirmation_remove_file_alert">"Do you really want to remove %1$s?"</string>
-    <string name="confirmation_remove_folder_alert">"Do you really want to remove %1$s the contents thereof?"</string>
+    <string name="confirmation_remove_folder_alert">"Do you really want to remove %1$s and the contents thereof?"</string>
     <string name="confirmation_remove_local">Local only</string>
     <string name="remove_success_msg">"Removed"</string>
     <string name="remove_fail_msg">"Removal failed"</string>