Detect wrong license

### Description

> Please leave a brief description of the bug or feature request:

https://github.com/wjakob/instant-meshes

The following sentence is recongnized as MIT in scancode.
"All rights reserved. Use of this source code is governed by a BSD-style license that can be found in the LICENSE.txt file."

Please fix it.
Thanks.

### How To Reproduce

> Tell us how to reproduce the issue.

### System configuration

> For bug reports, it really helps us to know:

* What OS are you running on? (Windows/MacOS/Linux)
* What version of scancode-toolkit was used to generate the scan file?
* What installation method was used to install/run scancode? (pip/source download/other)