Unify function spacing to PSR2 recommendation

.../accessibility/lib/Controller/AccessibilityController.php

apps/accessibility/lib/Controller/ConfigController.php

apps/accessibility/lib/Migration/RepairUserConfig.php

apps/admin_audit/lib/AppInfo/Application.php

apps/comments/lib/AppInfo/Application.php

apps/comments/lib/Collaboration/CommentersSorter.php

apps/dav/appinfo/app.php

apps/dav/appinfo/v1/webdav.php

apps/dav/lib/AppInfo/Application.php

apps/dav/lib/AppInfo/PluginManager.php

...lib/BackgroundJob/RegisterRegenerateBirthdayCalendars.php

...ckgroundJob/UpdateCalendarResourcesRoomsBackgroundJob.php

apps/dav/lib/BackgroundJob/UploadCleanup.php

apps/dav/lib/CalDAV/BirthdayCalendar/EnablePlugin.php

apps/dav/lib/CalDAV/CalDavBackend.php

apps/dav/lib/CalDAV/Calendar.php

apps/dav/lib/CalDAV/Publishing/PublishPlugin.php

apps/dav/lib/CalDAV/Reminder/ReminderService.php

...v/lib/CalDAV/ResourceBooking/AbstractPrincipalBackend.php

apps/dav/lib/CalDAV/Schedule/Plugin.php