Do not allow spaces in package name

Author: xuanxu

app/responders/ropensci/approve_responder.rb

@@ -7,7 +7,7 @@ class ApproveResponder < Responder
 
     def define_listening
       @event_action = "issue_comment.created"
-      @event_regex = /\A@#{bot_name} approve( [ \.\w-]*[ \w-]+)?\.?\s*\z/i
+      @event_regex = /\A@#{bot_name} approve( [\.\w-]*[\w-]+)?\.?\s*\z/i
     end
 
     def process_message(message)

spec/responders/ropensci/approve_responder_spec.rb

@@ -20,6 +20,7 @@
     it "should define regex" do
       expect(@responder.event_regex).to match("@ropensci-review-bot approve")
       expect(@responder.event_regex).to match("@ropensci-review-bot approve package-name")
+      expect(@responder.event_regex).to match("@ropensci-review-bot approve package.name")
       expect(@responder.event_regex).to match("@ropensci-review-bot approve package-name  \r\n")
       expect(@responder.event_regex).to_not match("@ropensci-review-bot approve package-name. another-command")
       expect(@responder.event_regex).to_not match("@ropensci-review-bot approve package-name\r\nanother-command")