Potential noise from copyright detection

FIle: busybox-1.37.0/docs)/unicode_full-bmp.txt

Part of the context
```
ힰힱힲힳힴힵힶힷힸힹힺힻힼힽힾힿퟀퟁퟂퟃퟄퟅퟆ퟇퟈퟉퟊ퟋퟌퟍퟎퟏퟐퟑퟒퟓퟔퟕퟖퟗퟘퟙퟚퟛퟜퟝퟞퟟퟠퟡퟢퟣퟤퟥퟦퟧퟨퟩퟪퟫퟬퟭퟮퟯ
ퟰퟱퟲퟳퟴퟵퟶퟷퟸퟹퟺퟻ퟼퟽퟾퟿

High Surrogates (U+D800-U+DB7F):

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High Private Use Surrogates (U+DB80-U+DBFF):
```

and this line is detected as have copyright context
```
í©€í©í©‚í©ƒí©„í©…í©†í©‡í©ˆí©‰í©Ší©‹í©Œí©í©Ží©í©í©‘í©’í©“í©”í©•í©–í©—í©˜í©™í©ší©›í©œí©í©ží©Ÿí© í©¡í©¢í©£í©¤í©¥í©¦í©§í©¨í©©í©ªí©«í©¬í©­í©®í©¯í©°í©±í©²í©³í©´í©µí©¶í©·í©¸í©¹í©ºí©»í©¼í©½í©¾í©¿
```

and return copyright as `copyright: (c) $?i (c) Y`

Not sure can this be improved.

This is the sample file:

[unicode_full-bmp.txt](https://github.com/user-attachments/files/24425866/unicode_full-bmp.txt)