message: Error out when no .git directory exists
diff: bldred=${txtbld}$(tput setaf 1)
  txtrst=$(tput sgr0)
  + if [ ! -d .git ]; then
  + printf "\nThis build script only works with sources cloned from git\n"
  + printf "\tPlease clone a new eos directory with 'git clone https://github.com/EOSIO/eos --recursive'\n"
  + printf "\tSee the wiki for instructions: https://github.com/EOSIO/eos/wiki\n"
  + exit 1
  + fi
  printf "\n\tBeginning build version: ${VERSION}\n"
  printf "\t$( date -u )\n"
  