Fixes #10705. New function 'HelperFile::joinPathFilename($pre, $post)'. Joins...
Fixes #10705. New function 'HelperFile::joinPathFilename($pre, $post)'. Joins only if $post is without leading slash.
Fixes #10705. New function 'HelperFile::joinPathFilename($pre, $post)'. Joins only if $post is without leading slash.