Replace PHP Short Tags

[ferrante]

ZoneMinder makes extensive use of PHP short tags. These tags (<? and <?= ) are deprecated, and some distributions (e.g. Slackware 12.2) ship with short-tag support disabled. PHP still ships with it on by default, but lists in the php.ini file:

; NOTE: Using short tags should be avoided when developing applications or
; libraries that are meant for redistribution, or deployment on PHP
; servers which are not under your control, because short tags may not
; be supported on the target server. For portable, redistributable code,
; be sure not to use short tags.

It may be as simple as a regex search & replace on the code. I was able to get functions.php converted with minor effort, but several other files utilize short tags as well. I am not familiar with ZoneMinder's codebase and don't want to submit a patch that covers (almost) every PHP file.

This is not a make-or-break feature/modification, but it would help make the codebase more compliant with newer PHP coding practices.