Merge pull request #15226 from Coeur/patch-1

Hi ho, Typo!
diff --git a/stdlib/public/core/Collection.swift b/stdlib/public/core/Collection.swift
index 99b2a09..3997a52 100644
--- a/stdlib/public/core/Collection.swift
+++ b/stdlib/public/core/Collection.swift
@@ -604,7 +604,7 @@
   ///     } else {
   ///         print("Hi ho, \(horseName)!")
   ///     }
-  ///     // Prints "Hi ho, Silver!")
+  ///     // Prints "Hi ho, Silver!"
   ///
   /// - Complexity: O(1)
   var isEmpty: Bool { get }