Remove extra dot in rule documentation (#18871)

crates/ruff_linter/src/rules/pylint/rules/duplicate_bases.rs

@@ -37,7 +37,7 @@ use crate::{Fix, FixAvailability, Violation};
 ///
 /// ## Fix safety
 /// This rule's fix is marked as unsafe if there's comments in the
-/// base classes, as comments may be removed..
+/// base classes, as comments may be removed.
 ///
 /// For example, the fix would be marked as unsafe in the following case:
 /// ```python

crates/ty_test/src/config.rs

@@ -105,7 +105,7 @@ pub(crate) enum Log {
 #[derive(Copy, Clone, Debug, PartialEq, Eq, Deserialize, Serialize, Default)]
 #[serde(rename_all = "kebab-case")]
 pub(crate) enum SystemKind {
-    /// Use an in-memory system with a case sensitive file system..
+    /// Use an in-memory system with a case-sensitive file system.
     ///
     /// This is recommended for all tests because it's fast.
     #[default]