For: #458, PSR-2 compliant whitespace in error classes

lib/SimpleSAML/Error/Assertion.php

lib/SimpleSAML/Error/AuthSource.php

lib/SimpleSAML/Error/BadRequest.php

lib/SimpleSAML/Error/BadUserInnput.php

lib/SimpleSAML/Error/CannotSetCookie.php

lib/SimpleSAML/Error/ConfigurationError.php

lib/SimpleSAML/Error/CriticalConfigurationError.php

lib/SimpleSAML/Error/Exception.php

lib/SimpleSAML/Error/InvalidCredential.php

lib/SimpleSAML/Error/MetadataNotFound.php

lib/SimpleSAML/Error/NoPassive.php

lib/SimpleSAML/Error/NoState.php

lib/SimpleSAML/Error/NotFound.php

lib/SimpleSAML/Error/ProxyCountExceeded.php

lib/SimpleSAML/Error/UnserializableException.php

lib/SimpleSAML/Error/User.php

lib/SimpleSAML/Error/UserAborted.php

lib/SimpleSAML/Error/UserNotFound.php