[BUGFIX] Fix wrong strlen check in DoubleMetaPhoneUtility

while (strlen($this->primary) < 4 || strlen($this->secondary < 4)) {

should be

while (strlen($this->primary) < 4 || strlen($this->secondary) < 4) {

Resolves: #85296
Releases: master,8.7
Change-Id: I1820218410538c095f3e3c907190726f8e970410
Reviewed-on: https://review.typo3.org/57252


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>