Added truncate/2 for truncate filter without length. Defaults to 20 chars.
Added truncate/2 for truncate filter without length. Defaults to 20 chars.

erlanger-ru/erlanger-ru.meta,erlanger-ru/erlanger-ru.meta,erlanger-ru/erlanger-ru.meta,erlanger-ru/erlanger-ru.meta,erlanger-ru/erlanger-ru.meta