Update: Remove inefficient and pointless size increase.

Update: Remove inefficient and pointless size increase.

This must have been by accident or by habit.
The (range->stop - range->start) for these shouldn't be happening.
These checks are solely for ensuring there is enough room after what is already allocated.
The behavior is actually potentially doubling its size.

Only increase size by the required amount.
There are likely other such problems that need to be fixed across this project.
I will likely not get to these by the 0.6.0 stable release and will have to address them following that as I find them.