Modify musl errno messages to match llvm-libc

[google-yfyang]

No description provided.

[sbc100]

Can you update the PR description to remove emscripten_platform_errors reference

[sbc100]

Can you also update the "Owner died" message. See #25008

[juj]

There's also this difference:

======================================================================
FAIL: test_pthread_mutex_robust (test_core.llvmlibc.test_pthread_mutex_robust)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/mnt/ssd1000/emscripten_buildbot/worker_root/x10dax-linux-mint22/emscripten_x10dax/build/emscripten/main/test/common.py", line 376, in decorated
    f(self, *args, **kwargs)
  File "/mnt/ssd1000/emscripten_buildbot/worker_root/x10dax-linux-mint22/emscripten_x10dax/build/emscripten/main/test/test_core.py", line 2752, in test_pthread_mutex_robust
    self.do_run_in_out_file_test('pthread/test_pthread_mutex_robust.c')
  File "/mnt/ssd1000/emscripten_buildbot/worker_root/x10dax-linux-mint22/emscripten_x10dax/build/emscripten/main/test/common.py", line 1971, in do_run_in_out_file_test
    output = self._build_and_run(srcfile, expected, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/mnt/ssd1000/emscripten_buildbot/worker_root/x10dax-linux-mint22/emscripten_x10dax/build/emscripten/main/test/common.py", line 2020, in _build_and_run
    self.assertContained(o, js_output, regex=regex)
  File "/mnt/ssd1000/emscripten_buildbot/worker_root/x10dax-linux-mint22/emscripten_x10dax/build/emscripten/main/test/common.py", line 1678, in assertContained
    self.fail("Expected to find '%s' in '%s', diff:\n\n%s\n%s" % (
AssertionError: Expected to find '[original owner] Setting lock...
[original owner] Locked. Now exiting without unlocking.
[main] Attempting to lock the robust mutex.
[main] pthread_mutex_lock -> Previous owner died.
[main] Now make the mutex consistent
[main] Mutex is now consistent; unlocking
' in '[original owner] Setting lock...
[original owner] Locked. Now exiting without unlocking.
[main] Attempting to lock the robust mutex.
[main] pthread_mutex_lock -> Owner died.
[main] Now make the mutex consistent
[main] Mutex is now consistent; unlocking
', diff:

--- expected
+++ actual
@@ -1,7 +1,7 @@
 [original owner] Setting lock...
 [original owner] Locked. Now exiting without unlocking.
 [main] Attempting to lock the robust mutex.
-[main] pthread_mutex_lock -> Previous owner died.
+[main] pthread_mutex_lock -> Owner died.
 [main] Now make the mutex consistent
 [main] Mutex is now consistent; unlocking




----------------------------------------------------------------------
Ran 1 test in 0.856s

FAILED (failures=1)

[google-yfyang]

Can you also update the "Owner died" message. See #25008

Done.

[juj]

Given that llvm-libc suite now passes, I added it to run as part of my local test lab CI suite at http://clbri.com:8010/#/builders