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diff --git a/src/tools/clippy/src/docs/chars_last_cmp.txt b/src/tools/clippy/src/docs/chars_last_cmp.txt
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+++ b/src/tools/clippy/src/docs/chars_last_cmp.txt
@@ -0,0 +1,17 @@
+### What it does
+Checks for usage of `_.chars().last()` or
+`_.chars().next_back()` on a `str` to check if it ends with a given char.
+
+### Why is this bad?
+Readability, this can be written more concisely as
+`_.ends_with(_)`.
+
+### Example
+```
+name.chars().last() == Some('_') || name.chars().next_back() == Some('-');
+```
+
+Use instead:
+```
+name.ends_with('_') || name.ends_with('-');
+```
+\ No newline at end of file