use /var/tmp in favor of /tmp

[jgh9]

Writing to /tmp on many systems these days is a ram filesystem and using this location could cause system issues if it is a large repository.

[CNG]

I need to research this more. I thought /var/tmp is not cleared out by the system on any schedule or ever (perhaps this is is just for certain OSes or I might be wrong), and if that's true, the script probably needs to be more robust to make sure files aren't left in the case of premature exit. In general there are various ways of doing temp files throughout the repo and I should also make those consistent.

[jgh9]

/var/tmp is sustained through reboots, but this area is usually considered a scratch space. /tmp is now normally a tmpfs system. In my humble opinion, using /var/tmp with some error checking is a more favorable approach over using /tmp that would more than likely these days eat into physical RAM of system. Thanks for the updates!