Shortened line length of trigger_error calls and improved @param of write()

http://www.phpdoc.org/docs/latest/for-users/phpdoc/tags/param.html
> The @param tag MAY have a multi-line description and does not need explicit delimiting.
Merge pull request #1530 from ravage84/long-trigger_error

Shortened line length of trigger_error calls and improved @param of write()