this is the code in the theme
<div class="nav-next fr"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'storefront' ) ); ?></div>
in the translation .po file the string to translate appears as
Newer posts <span class=\"meta-nav\">→</span>
That does not seem right to me?
Should that html be in there, if not what is wrong with the PHP?