Process.GetProcesses returns truncated 15 char string on OSX

[MarcoRossignoli]

Follow up issue https://github.com/dotnet/corefx/issues/34437 fixed on linux(except missing test for Alpine at the moment) but doesn't work on OSX.
We should investigate another way.
Extra: mono bugfix https://bugzilla.xamarin.com/show_bug.cgi?id=32539

/cc @danmosemsft @krwq

[safern]

Note that I've made this test a No-op test when running on alpine: dotnet/corefx#37350

[adamsitnik]

It seems that it got fixed with #96287 (@jozkee please correct me if I am wrong)

[jkotas]

We still have tests disabled against this issue:

runtime/src/libraries/System.Diagnostics.Process/tests/ProcessTests.cs

Line 2267 in f41b65f

[ActiveIssue("https://github.com/dotnet/runtime/issues/29330", TestPlatforms.OSX)]