Apply suggestions from code review

Author: johnzhou721

templates/macros/video.html

@@ -4,7 +4,7 @@
   {% set t_as_seen_at = transbag('translate', video.alt, 'as_seen_at') %}
   {% set t_by = transbag('translate', video.alt, 'by') %}
   {% set t_published = transbag('translate', video.alt, 'published') %}
-  {% set t_space_after_by = transbag('translate', article.alt, 'space_after_by') %}
+  {% set t_space_after_by = transbag('translate', video.alt, 'space_after_by') %}
 
   <h2><i class="fa fa-video-camera" aria-hidden="true"></i> {{ video.title }}</h2>
   <p>{{ t_by }}{{ '' if t_space_after_by else ' ' }}{{ video.author }}; {{ t_published }} {{ video.pub_date.strftime('%-d %B %Y') }}</p>

templates/news.html

@@ -4,7 +4,7 @@
 {% set t_more_articles = transbag('translate', this.alt, 'more_articles') %}
 {% set t_on = transbag('translate', this.alt, 'on') %}
 {% set t_posted_by = transbag('translate', this.alt, 'posted_by') %}
-{% set t_post_posted_date = transbag('translate', post.alt, 'post_posted_date') %}
+{% set t_post_posted_date = transbag('translate', this.alt, 'post_posted_date') %}
 
 {% block title %}{{ this.title }}{% endblock %}