index.php@Twenty_Fifteen : There is an unnecessary `space`.

[tmatsuur]

It will become a fine thing, but I will report.
The location is 48 line of index.php.
Space before end tag of span I think unnecessary.

Now:

'before_page_number' => '<span class="meta-nav screen-reader-text">' . __( 'Page', 'twentyfifteen' ) . ' </span>',

I think:

'before_page_number' => '<span class="meta-nav screen-reader-text">' . __( 'Page', 'twentyfifteen' ) . '</span>',

[ocean90]

Hello tmatsuur, thanks for your report.

Please take a look at paginate_links() where you'll see this line:
$page_links[] = "<span class='page-numbers current'>" . $args['before_page_number'] . number_format_i18n( $n ) . $args['after_page_number'] . "</span>";

The space is required to separate the screen reader text and the page number.

[tmatsuur]

Thank you for reply.
I was able to convince.