Fix marshal load error when marshal data includes "\n"

[arika]

test_queue fails when bytesize of suite_name is 5.
Because marshal data includes "\n".

require 'test/unit'

class Aiueo < Test::Unit::TestCase
  def test_ok
    assert true
  end
end

$ exe/testunit-queue t.rb
Starting test-queue master (/tmp/test_queue_98954_380.sock)
<internal:marshal>:34:in `load': marshal data too short (ArgumentError)
	from /.../lib/test_queue/runner.rb:511:in `distribute_queue'
	from /.../lib/test_queue/runner.rb:228:in `execute_internal'
	from /.../lib/test_queue/runner.rb:119:in `execute'
	from exe/testunit-queue:9:in `<main>'

[koic]

Can you add the repro test below and squash the commits together afterwards?

% git diff .
diff --git a/test/examples/example_testunit.rb b/test/examples/example_testunit.rb
index bf963f7..c16fb07 100644
--- a/test/examples/example_testunit.rb
+++ b/test/examples/example_testunit.rb
@@ -8,6 +8,12 @@ class TestUnitEqual < Test::Unit::TestCase
   end
 end

+class Short < Test::Unit::TestCase
+  def test_work_with_short_class_name
+    assert true
+  end
+end
+
 30.times do |i|
   Object.const_set("TestUnitSleep#{i}", Class.new(Test::Unit::TestCase) do
     define_method(:test_sleep) do

For reference, the test below can be run:

TEST_QUEUE_WORKERS=2 TEST_QUEUE_VERBOSE=1 BUNDLE_GEMFILE=gemfiles/testunit.gemfile bundle install && vendor/bats/bin/bats test/testunit.bats

[arika]

@koic Thank you for your review.
I added the test, squashed, and force pushed.

$ TEST_QUEUE_WORKERS=2 TEST_QUEUE_VERBOSE=1 BUNDLE_GEMFILE=gemfiles/testunit.gemfile vendor/bats/bin/bats test/testunit.bats
 ✓ testunit-queue succeeds when all tests pass
 ✓ testunit-queue fails when a test fails

2 tests, 0 failures

[koic]

Great! Thanks!

[koic]

FYI, test-queue 0.10.0 has been released.
https://github.com/tmm1/test-queue/releases/tag/v0.10.0