PHP 7.2 compatible issue func_get_args()

While checking drupal Authcache module with PHPCompatibility for making code compatible with PHP7.2, its showing following error:

FILE: ...uthcache\modules\authcache_enum\tests\authcache_enum_test.module
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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38 | WARNING | Since PHP 7.0, functions inspecting arguments, like
| | func_get_args(), no longer report the original value
| | as passed to a parameter, but will instead provide
| | the current value. The parameter "$properties" was
| | used, and possibly changed (by reference), on line
| | 37.
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FILE: ...uthcache\modules\authcache_form\tests\authcache_form_test.module
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FOUND 1 ERROR AFFECTING 1 LINE
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63 | ERROR | Since PHP 7.0, functions inspecting arguments, like
| | func_get_args(), no longer report the original value as
| | passed to a parameter, but will instead provide the
| | current value. The parameter "$form_state" was changed
| | on line 62.
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Time: 10.56 secs; Memory: 18MB