change $txt['origin_topic'] to 'Original Topic'

fix #1444

Signed-off-by: Suki <[email protected]>

Themes/default/languages/index.english.php

@@ -440,7 +440,7 @@ $txt['split_after_and_this_post'] = 'Split topic after and including this post.'
 $txt['select_split_posts'] = 'Select posts to split.';
 $txt['new_topic'] = 'New Topic';
 $txt['split_successful'] = 'Topic successfully split into two topics.';
-$txt['origin_topic'] = 'Origin Topic';
+$txt['origin_topic'] = 'Original Topic';
 $txt['please_select_split'] = 'Please select which posts you wish to split.';
 $txt['merge_successful'] = 'Topics successfully merged.';
 $txt['new_merged_topic'] = 'Newly Merged Topic';