change save message from 'Check' to 'Submit'

common/lib/xmodule/xmodule/capa_module.py

@@ -1010,7 +1010,7 @@ class CapaModule(CapaFields, XModule):
         self.system.track_function('save_problem_success', event_info)
         msg = "Your answers have been saved"
         if not self.max_attempts == 0:
-            msg += " but not graded. Hit 'Check' to grade them."
+            msg += " but not graded. Hit 'Submit' to grade them."
         return {'success': True,
                 'msg': msg}