Summary: Minor typo when referencing `std::allocator`
Closes #84
Reviewed By: @yfeldblum
Differential Revision:
D2144830
Pulled By: @sgolemon
either in-place reallocation or an allocate-memcpy-deallocate
cycle. Such lack of control subsequently forced all clib-based
allocator designs to avoid in-place reallocation, and that
-includes C++'s `new` and `std:allocator`. This is a major loss of
+includes C++'s `new` and `std::allocator`. This is a major loss of
efficiency because an in-place reallocation, being very cheap,
may mean a much less aggressive growth strategy. In turn that
means less slack memory and faster reallocations.