fix trailing whitespace

Author: ImShyMike

lib/test_wakatime_service.rb

@@ -3,7 +3,7 @@
 class TestWakatimeService
   def initialize(user: nil, specific_filters: [], allow_cache: true, limit: 10, start_date: nil, end_date: nil, scope: nil, boundary_aware: false)
     @scope = scope || Heartbeat.all
-    # trusting time from hackatime extensions..... 
+    # trusting time from hackatime extensions.....
     # @scope = @scope.coding_only
     @scope = @scope.with_valid_timestamps
     @user = user