Update distinfo and unbreak this port
- While I'm here, fix indent
Content of tarballs are unchanged (checked against ).
=> Net_MAC-0.1.5.tgz doesn't seem to exist in /usr/ports/distfiles/PEAR.
=> Attempting to fetch http://pear.php.net/get/Net_MAC-0.1.5.tgz
fetch: http://pear.php.net/get/Net_MAC-0.1.5.tgz: size mismatch: expected 5262,
Reference: https://people.FreeBSD.org/~sunpoet/checksum/Net_MAC-0.1.5.tgz 
Approved by: portmgr (blanket)