Fix some rubocop issues

Closes #56

Author: Laura Paakkinen

Rakefile

@@ -4,5 +4,5 @@ Rake::TestTask.new do |t|
   t.libs << 'test'
 end
 
-desc "Run tests"
-task :default => :test
+desc 'Run tests'
+task default: :test

examples/example.rb

@@ -6,7 +6,7 @@
     "Authorization": "Bearer ' + ENV['SENDGRID_API_KEY'] + '"
   }
 ')
-host =  'https://api.sendgrid.com'
+host = 'https://api.sendgrid.com'
 client = SendGrid::Client.new(host: host, request_headers: headers)
 
 # GET Collection

lib/ruby_http_client.rb

@@ -41,7 +41,7 @@ def initialize(host: nil, request_headers: nil, version: nil, url_path: nil)
       @request_headers = request_headers || {}
       @version = version
       @url_path = url_path || []
-      @methods = %w(delete get patch post put)
+      @methods = %w[delete get patch post put]
       @query_params = nil
       @request_body = nil
     end
@@ -141,13 +141,13 @@ def build_request(name, args)
       @http = add_ssl(Net::HTTP.new(uri.host, uri.port))
       net_http = Kernel.const_get('Net::HTTP::' + name.to_s.capitalize)
       @request = build_request_headers(net_http.new(uri.request_uri))
-      if (@request_body &&
-          (!@request_headers.has_key?('Content-Type') ||
-           @request_headers['Content-Type'] == 'application/json')
-      )
+      if @request_body &&
+         (!@request_headers.key?('Content-Type') ||
+          @request_headers['Content-Type'] == 'application/json')
+
         @request.body = @request_body.to_json
         @request['Content-Type'] = 'application/json'
-      elsif !@request_body and (name.to_s == "post")
+      elsif !@request_body && (name.to_s == 'post')
         @request['Content-Type'] = ''
       else
         @request.body = @request_body

ruby_http_client.gemspec

@@ -1,4 +1,4 @@
-# coding: utf-8
+
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)