`brew` causes ":unneeded is deprecated!" warning

[wzhliang]

I am seeing the following message when executing brew commands, like brew uninstall or brew uninstall

Warning: Calling bottle :unneeded is deprecated! There is no replacement.
Please report this issue to the weibeld/core tap (not Homebrew/brew or Homebrew/core):
  /usr/local/Homebrew/Library/Taps/weibeld/homebrew-core/Formula/k1s.rb:7

Not sure what's going on but opening an ticket here as recommended by brew.

[weibeld]

Thanks for pointing this out. The deprecated bottle :unneeded caused the installations to fail.

It's fixed now in the formula repository.