Make it compatible with ruby 2.2

[deees]

Fixes:

daemon-kit/lib/daemon_kit/initializer.rb:337: warning: circular argument reference - instance

@kennethkalmer @marcbowes

[coveralls]

Coverage remained the same at 78.14% when pulling 4e1eaef on deees:fix/ruby_2_2 into 0c87223 on kennethkalmer:master.

[marcbowes]

I'd appreciate it if you completely removed the ambiguity.

For example:

def pid_file an_instance = instance()
  "... #{an_instance}.pid"

The nuclear option is to copy #pid_file to a class method with an arity of 1 and then have the instance version have an arity of 0. This is a breaking change though.

[marcbowes]

Thanks! I have a small line comment, if you don't mind addressing :-).

[deees]

@marcbowes: fixed 😄

[coveralls]

Coverage remained the same at 78.14% when pulling 0909286 on deees:fix/ruby_2_2 into 0c87223 on kennethkalmer:master.

[marcbowes]

Thanks. Do you need this released (to Rubygems) or are you happy to pull from GitHub?

[deees]

Rubygems release would be great! Thanks!

[kennethkalmer]

Such speed, thanks @marcbowes for getting this through and @deees for the fix!

[marcbowes]

f0c4f3b released (https://rubygems.org/gems/daemon-kit/versions/0.3.2).

[deees]

Thanks! 👍

[kennethkalmer]

👍