Modify reset button and invalid credential error text

cms/djangoapps/contentstore/views/tests/test_transcript_settings.py

@@ -69,7 +69,7 @@ class TranscriptCredentialsTest(CourseTestCase):
             },
             ({'error_type': TranscriptionProviderErrorType.INVALID_CREDENTIALS}, False),
             400,
-            '{\n  "error": "Transcript credentials are not valid."\n}'
+            '{\n  "error": "The information you entered is incorrect."\n}'
         ),
         (
             {

cms/djangoapps/contentstore/views/transcript_settings.py

@@ -103,7 +103,7 @@ def transcript_credentials_handler(request, course_key_string):
             # edx-video-pipeline doesn't support i18n translations yet.
             error_type = error_response.get('error_type')
             if error_type == TranscriptionProviderErrorType.INVALID_CREDENTIALS:
-                error_message = _('Transcript credentials are not valid.')
+                error_message = _('The information you entered is incorrect.')
 
             response = JsonResponse({'error': error_message}, status=400)
 

cms/templates/js/course-video-settings-update-org-credentials-footer.underscore

 <button class='button-link action-cancel-course-video-settings' aria-describedby='cancel-button-text'>
-    <%- gettext('Reset') %>
-    <span id='cancel-button-text' class='sr'><%-gettext('Press reset to discard your changes.') %></span>
+    <%- gettext('Discard Changes') %>
+    <span id='cancel-button-text' class='sr'><%-gettext('Press discard changes to discard your changes.') %></span>
 </button>
 <button class='button action-update-org-credentials' aria-describedby='update-org-credentials-button-text'>
     <%- gettext('Update Settings') %>

cms/templates/js/course-video-settings-update-settings-footer.underscore

 <button class='button-link action-cancel-course-video-settings' aria-describedby='cancel-button-text'>
-    <%- gettext('Reset') %>
-    <span id='cancel-button-text' class='sr'><%-gettext('Press reset to discard changes.') %></span>
+    <%- gettext('Discard Changes') %>
+    <span id='cancel-button-text' class='sr'><%-gettext('Press discard changes to discard changes.') %></span>
 </button>
 <button class="button action-update-course-video-settings" aria-describedby='update-button-text'>
     <%- gettext('Update Settings') %>