Update upstream branch name for lsl

[rokm]

As of this week, trying to install lsl via brew install labstreaminglayer/tap/lsl results in the following error:

 ==> Tapping labstreaminglayer/tap
Cloning into '/usr/local/Homebrew/Library/Taps/labstreaminglayer/homebrew-tap'...
Tapped 2 formulae (18 files, 34.9KB).
==> Fetching dependencies for labstreaminglayer/tap/lsl: cmake
==> Fetching cmake
==> Downloading https://ghcr.io/v2/homebrew/core/cmake/manifests/4.0.3
==> Downloading https://ghcr.io/v2/homebrew/core/cmake/blobs/sha256:dc93b4885174dc8c41727e97a3e3ef1429d74e66c8923d450f3edf04d9564055
==> Fetching labstreaminglayer/tap/lsl
==> Cloning https://github.com/sccn/liblsl
Cloning into '/Users/runner/Library/Caches/Homebrew/lsl--git'...
fatal: Remote branch master not found in upstream origin
Error: lsl: Failed to download resource "lsl"
Failure while executing; `/usr/bin/env git clone --branch master --config advice.detachedHead=false --config core.fsmonitor=false https://github.com/sccn/liblsl /Users/runner/Library/Caches/Homebrew/lsl--git` exited with 128. Here's the output:
Cloning into '/Users/runner/Library/Caches/Homebrew/lsl--git'...
fatal: Remote branch master not found in upstream origin



==> Installing lsl from labstreaminglayer/tap
==> Installing dependencies for labstreaminglayer/tap/lsl: cmake
==> Installing labstreaminglayer/tap/lsl dependency: cmake
==> Downloading https://ghcr.io/v2/homebrew/core/cmake/manifests/4.0.3
Already downloaded: /Users/runner/Library/Caches/Homebrew/downloads/f12ede4a1167d594911901094e755e81dc1f0673c871f889b6a3ef15469dff5d--cmake-4.0.3.bottle_manifest.json
==> Pouring cmake--4.0.3.ventura.bottle.tar.gz
🍺  /usr/local/Cellar/cmake/4.0.3: 3,870 files, 62.2MB
==> Installing labstreaminglayer/tap/lsl
==> Cloning https://github.com/sccn/liblsl
Cloning into '/Users/runner/Library/Caches/Homebrew/lsl--git'...
fatal: Remote branch master not found in upstream origin
Error: An exception occurred within a child process:
  DownloadError: Failed to download resource "lsl"
Failure while executing; `/usr/bin/env git clone --branch master --config advice.detachedHead=false --config core.fsmonitor=false https://github.com/sccn/liblsl /Users/runner/Library/Caches/Homebrew/lsl--git` exited with 128. Here's the output:
Cloning into '/Users/runner/Library/Caches/Homebrew/lsl--git'...
fatal: Remote branch master not found in upstream origin

Looking at https://github.com/sccn/liblsl.git, it seems that the master branch is gone, and there is main instead (in addition to dev).

Have the lsl.rb Formula explicitly specify the branch to use (i.e., master).

[cboulay]

Thanks!
I actually did a branch rename, so I’m kind of surprised that it wasn’t redirected automatically.