code: func goFmtPackage(pkg *build.Package) {
  	output, err := exec.Command("go", "fmt", pkg.ImportPath).Output()
  
  	if err != nil {
  		fmt.Printf("Warning: Error running 'go fmt %s'.\nstdout: %s\n%s\n", pkg.ImportPath, output, err.Error())
  	}
  }
docs: /*
   * Shells out to `go fmt` to format the package
   */