lgpl 2.1 recognized as gpl-3.0 AND lgpl-3.0

### Description

https://github.com/GNOME/gimp/blob/master/plug-ins/python/python-console/pyconsole.py

```
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public version 2.1 as
# published by the Free Software Foundation.
#
# See COPYING.lib file that comes with this distribution for full text
# of the license.
```

Scancode says:

```
"license_detections": [
{
"license_expression": "gpl-3.0 AND lgpl-3.0",
"license_expression_spdx": "GPL-3.0-only AND LGPL-3.0-only",
"matches": [
{
"license_expression": "gpl-3.0",
"license_expression_spdx": "GPL-3.0-only",
"from_file": "gimp/plug-ins/python/python-console/pyconsole.py",
"start_line": 7,
"end_line": 9,
"matcher": "3-seq",
"score": 90.32,
"matched_length": 28,
"match_coverage": 90.32,
"rule_relevance": 100,
"rule_identifier": "gpl-3.0_613.RULE",
"rule_url": "https://github.com/nexB/scancode-toolkit/tree/develop/src/licensedcode/data/rules/gpl-3.0_613.RULE"
},
{
"license_expression": "lgpl-3.0",
"license_expression_spdx": "LGPL-3.0-only",
"from_file": "gimp/plug-ins/python/python-console/pyconsole.py",
"start_line": 7,
"end_line": 12,
"matcher": "3-seq",
"score": 90.0,
"matched_length": 27,
"match_coverage": 90.0,
"rule_relevance": 100,
"rule_identifier": "lgpl-3.0_57.RULE",
"rule_url": "https://github.com/nexB/scancode-toolkit/tree/develop/src/licensedcode/data/rules/lgpl-3.0_57.RULE"
}
],
"identifier": "gpl_3_0_and_lgpl_3_0-e52fe4ea-28f3-5435-93c7-334f303f8348"
}
],

```