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diff --git a/src/docs/single_char_pattern.txt b/src/docs/single_char_pattern.txt
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--- a/src/docs/single_char_pattern.txt
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-### What it does
-Checks for string methods that receive a single-character
-`str` as an argument, e.g., `_.split("x")`.
-
-### Why is this bad?
-Performing these methods using a `char` is faster than
-using a `str`.
-
-### Known problems
-Does not catch multi-byte unicode characters.
-
-### Example
-```
-_.split("x");
-```
-
-Use instead:
-```
-_.split('x');
-```
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