utils/shfmt.sh: add function wrap_then_do
utils/shfmt.sh: add function wrap_then_do

JCount/brew,EricFromCanada/brew,MikeMcQuaid/brew,nandub/brew,nandub/brew,MikeMcQuaid/brew,JCount/brew,Homebrew/brew,Homebrew/brew,nandub/brew,JCount/brew,Homebrew/brew,JCount/brew,EricFromCanada/brew,EricFromCanada/brew,MikeMcQuaid/brew,MikeMcQuaid/brew,nandub/brew,Homebrew/brew,EricFromCanada/brew