Revision 432211

mail/pear-Mail_Queue: overloading isError static mismatch

Since devel/pear was upgraded to 1.10.1, mail/pear-Mail_Queue
was broken and could not be used, giving the following error:
  PHP Fatal error:  Cannot make static method PEAR::isError() non
  static in class Mail_Queue in /usr/local/share/pear/Mail/Queue.php on line 126

Upstream bug report: http://pear.php.net/bugs/bug.php?id=20976

PR:		215325
Submitted by:	ml@netfence.it
Reported by:	ml@netfence.it
MFH:		2017Q1
Approved by:	Jochen Neumeister (maintainer), rakuco (mentor)