missing double //

Author: vinay-deshmukh

libcxx/include/map

@@ -301,7 +301,7 @@ swap(map<Key, T, Compare, Allocator>& x, map<Key, T, Compare, Allocator>& y)
 
 template <class Key, class T, class Compare, class Allocator, class Predicate>
 typename map<Key, T, Compare, Allocator>::size_type
-erase_if(map<Key, T, Compare, Allocator>& c, Predicate pred);  // C++20 // constexpr since C++26
+erase_if(map<Key, T, Compare, Allocator>& c, Predicate pred);  // C++20, constexpr since C++26
 
 
 template <class Key, class T, class Compare = less<Key>,