Typo in specification of merge for associative containers

[tomaszkam]

In the content of the Table 86 (Associative container requirements) and Table 87 (Unordered associative container requirements) the preconditions of the a.merge(a2) operation is defined as follows (most probably an copy-paste from a_eq.insert(nh)):

Pre: a_eq.get_allocator() == nh.get_allocator()

But it should say instead:

Pre: a.get_allocator() == a2.get_allocator()