Update expected output for libmongoc 1.24-dev

See mongodb/mongo-c-driver@40a64c2 for CDRIVER-4503

Author: jmikola

tests/manager/manager-ctor-read_preference-error-001.phpt

@@ -48,7 +48,7 @@ echo throws(function() {
 <?php exit(0); ?>
 --EXPECT--
 OK: Got MongoDB\Driver\Exception\InvalidArgumentException
-Failed to parse MongoDB URI: 'mongodb://127.0.0.1/?readPreference=1'. Unsupported readPreference value [readPreference=1].
+Failed to parse MongoDB URI: 'mongodb://127.0.0.1/?readPreference=1'. Error while assigning URI read preference: Unsupported readPreference value [readPreference=1].
 OK: Got MongoDB\Driver\Exception\InvalidArgumentException
 Failed to parse MongoDB URI: 'mongodb://127.0.0.1/?readPreference=secondary&readPreferenceTags=invalid'. Unsupported value for "readPreferenceTags": "invalid".
 OK: Got MongoDB\Driver\Exception\InvalidArgumentException

tests/manager/manager-ctor-write_concern-error-005.phpt

@@ -58,9 +58,9 @@ Failed to parse MongoDB URI: 'mongodb://127.0.0.1/?journal=invalid'. Unsupported
 OK: Got MongoDB\Driver\Exception\InvalidArgumentException
 Expected boolean for "journal" URI option, string given
 OK: Got MongoDB\Driver\Exception\InvalidArgumentException
-Failed to parse MongoDB URI: 'mongodb://127.0.0.1/?w=-1&journal=true'. Journal conflicts with w value [w=-1].
+Failed to parse MongoDB URI: 'mongodb://127.0.0.1/?w=-1&journal=true'. Error while parsing the 'w' URI option: Journal conflicts with w value [w=-1].
 OK: Got MongoDB\Driver\Exception\InvalidArgumentException
-Failed to parse MongoDB URI: 'mongodb://127.0.0.1/?w=0&journal=true'. Journal conflicts with w value [w=0].
+Failed to parse MongoDB URI: 'mongodb://127.0.0.1/?w=0&journal=true'. Error while parsing the 'w' URI option: Journal conflicts with w value [w=0].
 OK: Got MongoDB\Driver\Exception\InvalidArgumentException
 Journal conflicts with w value: -1
 OK: Got MongoDB\Driver\Exception\InvalidArgumentException