Fix SpaceBeforeOpenBrace errors

apps/files_external/ajax/addRootCertificate.php

apps/files_external/lib/streamwrapper.php

apps/files_external/lib/swift.php

apps/files_external/lib/webdav.php

apps/files_versions/lib/versions.php

apps/user_ldap/ajax/deleteConfiguration.php

apps/user_ldap/lib/connection.php

lib/api.php

lib/app.php

lib/base.php

lib/connector/sabre/request.php

lib/fileproxy/fileoperations.php

lib/fileproxy/quota.php

lib/files/cache/permissions.php

lib/files/storage/common.php

lib/installer.php

lib/ocs/privatedata.php

lib/util.php

settings/oauth.php