set date from last commit for files pulled from git

post-merge

#!/usr/bin/env bash

last_date=`git log --date=iso | head -n 3 | grep Date | sed 's/.*e:   //i'`

for changed in `git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD`;
    do
      touch $changed -c -d "$last_date"
    done;