formula_installer.rb: Call link before check_PATH

Otherwise, for formula that making the very first install into `sbin`, the
following line will fail with a critical error:

    bin = (HOMEBREW_PREFIX/bin.basename).realpath.to_s

Because `sbin` will not exist until after `link` runs.

This isn't very clean as it moves `check_PATH` away from the other checks in
`caveats`, but I couldn't think of a better hotfix that did not require a bit
of code shuffling and re-writing.

0 files changed, 0 insertions, 0 deletions