add go_build and go_fmt to the list of available checks

Author: marcosvm

test/unit/pre-commit/list_evaluator_test.rb

@@ -22,7 +22,7 @@
   it :list do
     subject.list.gsub(/\s+\n/,"\n").must_equal(<<-EXPECTED)
 Available providers: default(0)
-Available checks   : before_all ci closure coffeelint common console_log csslint debugger gemfile_path go jshint jslint json local merge_conflict migration nb_space php pry rails rspec_focus rubocop ruby ruby_symbol_hashrockets scss_lint tabs whitespace yaml
+Available checks   : before_all ci closure coffeelint common console_log csslint debugger gemfile_path go go_build go_fmt jshint jslint json local merge_conflict migration nb_space php pry rails rspec_focus rubocop ruby ruby_symbol_hashrockets scss_lint tabs whitespace yaml
 Default   checks   :
 Enabled   checks   :
 Evaluated checks   :