[Intentional or bug?] v4.3.19 brew list now outputs single column lists

[dalDevelo]

brew doctor output

➜  brew doctor
Your system is ready to brew.

Verification

• My "brew doctor output" above says Your system is ready to brew. and am still able to reproduce my issue.
• I ran brew update twice and am still able to reproduce my issue.
• This issue's title and/or description do not reference a single formula e.g. brew install wget. If they do, open an issue at https://github.com/Homebrew/homebrew-core/issues/new/choose instead.

brew config output

➜  brew config
HOMEBREW_VERSION: 4.3.19
ORIGIN: https://github.com/Homebrew/brew
HEAD: 1f9bd2de89883ec9a59db3eab0f5475bce06d5bc
Last commit: 12 hours ago
Core tap JSON: 02 Sep 21:09 UTC
Core cask tap JSON: 02 Sep 21:09 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 10
Homebrew Ruby: 3.3.4 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.3.4_1/bin/ruby
CPU: 10-core 64-bit arm_firestorm_icestorm
Clang: 15.0.0 build 1500
Git: 2.39.3 => /Library/Developer/CommandLineTools/usr/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 14.6.1-arm64
CLT: 15.3.0.0.1.1708646388
Xcode: 15.4
Rosetta 2: false

What were you trying to do (and why)?

Use brew list to view installed formulae and casks

What happened (include all command output)?

brew list shows single column lists since version 4.3.19

What did you expect to happen?

Expected to see multi-column lists as displayed with brew ls

Step-by-step reproduction instructions (by running brew commands)

Run `brew list`
Run `brew ls`

[Bo98]

Not intentional specifically, though we did change how it worked - it's now significantly faster. I think I can fix the output to be similar to before however.

[dalDevelo]

It's not the end of the world if it remains this way, but Including a small prompt to use brew ls for multi column view could be useful.

[Bo98]

brew ls being different is also not intentional either. We'll fix and align this in 4.3.20.