Unhyphenate "log-in". see #23295

git-svn-id: https://core.svn.wordpress.org/trunk@23625 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add shortcode_atts_$shortcode filter for when the name of the shortcode is passed to shortcode_atts(). props coffee2code. fixes #15155.



git-svn-id: https://core.svn.wordpress.org/trunk@23626 1a063a9b-81f0-0310-95a4-ce76da25c4cd