Deprecate setting GridFS disableMD5 to false explicitly

Author: GromNaN

src/GridFS/Bucket.php

@@ -61,6 +61,7 @@
 use function stream_copy_to_stream;
 use function stream_get_meta_data;
 use function stream_get_wrappers;
+use function trigger_deprecation;
 use function urlencode;
 
 /**
@@ -132,6 +133,10 @@ class Bucket
      */
     public function __construct(Manager $manager, string $databaseName, array $options = [])
     {
+        if (isset($options['disableMD5']) && $options['disableMD5'] === false) {
+            trigger_deprecation('mongodb/mongodb', '1.10', 'Setting GridFS "disableMD5" option to "false" is deprecated and will not be supported in version 2.0.');
+        }
+
         $options += [
             'bucketName' => self::DEFAULT_BUCKET_NAME,
             'chunkSizeBytes' => self::DEFAULT_CHUNK_SIZE_BYTES,

src/GridFS/WritableStream.php

@@ -36,6 +36,7 @@
 use function sprintf;
 use function strlen;
 use function substr;
+use function trigger_deprecation;
 
 /**
  * WritableStream abstracts the process of writing a GridFS file.