Remove wrong dashes from get_the_title()

get_the_title() is treated with wptexturize() by default. That changes the dash.

To fix it remove the filter and reapply it if it was really set:

$wptexturize = remove_filter( 'the_title', 'wptexturize' );
$title       = get_the_title();

if ( $wptexturize )
    add_filter( 'the_title', 'wptexturize' );