Rollup merge of rust-lang#112172 - tshepang:patch-1, r=Mark-Simulacrum

matthiaskrgr · web-flow · commit cbc3e3f641b8 · 2023-06-04T13:21:27.000+02:00
doc: improve explanation
diff --git a/library/std/src/sync/once.rs b/library/std/src/sync/once.rs
@@ -91,7 +91,7 @@ impl Once {
     /// return).
     ///
     /// If the given closure recursively invokes `call_once` on the same [`Once`]
-    /// instance the exact behavior is not specified, allowed outcomes are
+    /// instance, the exact behavior is not specified: allowed outcomes are
     /// a panic or a deadlock.
     ///
     /// # Examples
