Fix some @param docs that have chars too close them.

Add `@property` annotations to `WP_User` and `WP_Post`.
Remove erroneous `@param`s from image editor class methods.
Officially add the property `$_column_headers` to `WP_List_Table`.	

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@31127 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/formatting.php

@@ -3522,7 +3522,7 @@ function wp_pre_kses_less_than_callback( $matches ) {
  * @link http://www.php.net/sprintf
  *
  * @param string $pattern The string which formatted args are inserted.
- * @param mixed $args,... Arguments to be formatted into the $pattern string.
+ * @param mixed  $args ,... Arguments to be formatted into the $pattern string.
  * @return string The formatted string.
  */
 function wp_sprintf( $pattern ) {