Safety thing prevent overwriting files

Change-Id: Ic41b4f83b9e1e4988513306a7ded04698c738fb5
Cheap fix to handle multipart audit files

The big catch is that the second file does not include column headers.

Change-Id: Ib4963bc63226a8b1303010b2730dd32d5361e1b6
Merge "Safety thing prevent overwriting files"
Merge remote-tracking branch 'origin/master' into HEAD

ec37ef29e3b29ca1fbf469e82ff6a11930344663 Safety thing prevent overwriting files
9a04b90f2da0d3a15cb7ba70f8dc6bc4631c7278 Cheap fix to handle multipart audit files

Change-Id: I4eb179beef6fe455deb025691274d5b06066ce33