Construct needs to be run twice due to /usr/local/bin/vi: File exists

[bwinter]

./construct output:

==> Installing vim
==> Downloading https://homebrew.bintray.com/bottles/vim-8.1.0800.sierra.bottle.tar.gz
######################################################################## 100.0%
==> Pouring vim-8.1.0800.sierra.bottle.tar.gz
🍺  /usr/local/Cellar/vim/8.1.0800: 1,841 files, 30.8MB
==> Caveats
==> lua
You may also want luarocks:
  brew install luarocks
==> perl
By default non-brewed cpan modules are installed to the Cellar. If you wish
for your modules to persist across updates we recommend using `local::lib`.

You can set that up like this:
  PERL_MM_OPT="INSTALL_BASE=$HOME/perl5" cpan local::lib
  echo 'eval "$(perl -I$HOME/perl5/lib/perl5 -Mlocal::lib=$HOME/perl5)"' >> ~/.bash_profile
==> ruby
By default, binaries installed by gem will be placed into:
  /usr/local/lib/ruby/gems/2.6.0/bin

You may want to add this to your PATH.

ruby is keg-only, which means it was not symlinked into /usr/local,
because macOS already provides this software and installing another version in
parallel can cause all kinds of trouble.

If you need to have ruby first in your PATH run:
  echo 'export PATH="/usr/local/opt/ruby/bin:$PATH"' >> ~/.bash_profile

For compilers to find ruby you may need to set:
  export LDFLAGS="-L/usr/local/opt/ruby/lib"
  export CPPFLAGS="-I/usr/local/opt/ruby/include"

ln: /usr/local/bin/vi: File exists

Running ./construct a second time works but it would be smoother to avoid having to do so.