```ruby
module ZombieScout
  class MethodCallFinder

    def initialize(ruby_project)
      @ruby_project = ruby_project
    end

    def count_calls(method_name)
      method_name = method_name.to_s
      method_name.sub!(/=$/, ' *=')
      find_occurrances(method_name).size
    end

    private

    def find_occurrances(method_name)
      # TODO somehow expose some of this config for end-users
      command = "grep -rnw --include=\"*.rb\" --include=\"*.erb\" --binary-files=without-match #{method_name} #{files_to_search} "
      #  grep -r --include="*.rb" --include="*.erb" -nw PATTERN app lib

      grep_lines = `#{command}` 
      grep_lines.split("\n")
    end

    def files_to_search
      glob = @ruby_project.folders.join(' ')
    end
  end
end
```

Kill unneeded assignment to local var
user
```ruby
module ZombieScout
  class MethodCallFinder

    def initialize(ruby_project)
      @ruby_project = ruby_project
    end

    def count_calls(method_name)
      method_name = method_name.to_s
      method_name.sub!(/=$/, ' *=')
      find_occurrances(method_name).size
    end

    private

    def find_occurrances(method_name)
      # TODO somehow expose some of this config for end-users
      command = "grep -rnw --include=\"*.rb\" --include=\"*.erb\" --binary-files=without-match #{method_name} #{files_to_search} "
      #  grep -r --include="*.rb" --include="*.erb" -nw PATTERN app lib

      grep_lines = `#{command}` 
      grep_lines.split("\n")
    end

    def files_to_search
      @ruby_project.folders.join(' ')
    end
  end
end
```
assistant