fixed bad access in a debug message

[tamoyal]

Issue #26

[johnewart]

The client spec test fails with this -- https://github.com/johnewart/gearman-ruby/blob/master/spec/client_spec.rb#L57 needs to be updated to stub to_host_port or (probably better, but more work) be modeled to only stub the connectivity bits. Mind updating that and making sure specs pass?

[tamoyal]

Makes sense. I fixed and it looks like everything passes now but I get these warnings / deprecations:

Pending:
  Gearman::TaskSet handles a NetworkError when submitting a job
    # Temporarily skipped with xit
    # ./spec/taskset_spec.rb:16
  Gearman::TaskSet waits for an answer from the server
    # Temporarily skipped with xit
    # ./spec/taskset_spec.rb:44

Deprecation Warnings:

Using `should_not` from rspec-expectations' old `:should` syntax without explicitly enabling the syntax is deprecated. Use the new `:expect` syntax or explicitly enable `:should` instead. Called from /Users/tamoyal/Projects/Sidewalk/gearman-ruby/spec/client_spec.rb:21:in `block (2 levels) in <top (required)>'.

Using `stub` from rspec-mocks' old `:should` syntax without explicitly enabling the syntax is deprecated. Use the new `:expect` syntax or explicitly enable `:should` instead. Called from /Users/tamoyal/Projects/Sidewalk/gearman-ruby/spec/client_spec.rb:15:in `block (2 levels) in <top (required)>'.

are those to be expected?