document new variable

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

diff --git a/apps/files/lib/Activity/Provider.php b/apps/files/lib/Activity/Provider.php
index 676ebfc304b23158397b36daf6d7977be4588f2f..f1ffb851203a455a385d1998f276775a2e02bb01 100644 (file)
--- a/apps/files/lib/Activity/Provider.php
+++ b/apps/files/lib/Activity/Provider.php
@@ -43,6 +43,9 @@ class Provider implements IProvider {
        /** @var IUserManager */
        protected $userManager;
 
+       /** @var string[] cached displayNames - key is the UID and value the displayname */
+       protected $displayNames = [];
+
        /**
         * @param IL10N $l
         * @param IURLGenerator $url