Bump deps

vendor/github.com/google/go-github/github/repos_commits.go

@@ -140,10 +140,9 @@ func (s *RepositoriesService) ListCommits(ctx context.Context, owner, repo strin
 }
 
 // GetCommit fetches the specified commit, including all details about it.
-// todo: support media formats - https://github.com/google/go-github/issues/6
 //
 // GitHub API docs: https://developer.github.com/v3/repos/commits/#get-a-single-commit
-// See also: https://developer.github.com//v3/git/commits/#get-a-single-commit provides the same functionality
+// See also: https://developer.github.com/v3/git/commits/#get-a-single-commit provides the same functionality
 func (s *RepositoriesService) GetCommit(ctx context.Context, owner, repo, sha string) (*RepositoryCommit, *Response, error) {
 	u := fmt.Sprintf("repos/%v/%v/commits/%v", owner, repo, sha)
 
@@ -164,6 +163,32 @@ func (s *RepositoriesService) GetCommit(ctx context.Context, owner, repo, sha st
 	return commit, resp, nil
 }
 
+// GetCommitRaw fetches the specified commit in raw (diff or patch) format.
+func (s *RepositoriesService) GetCommitRaw(ctx context.Context, owner string, repo string, sha string, opt RawOptions) (string, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/commits/%v", owner, repo, sha)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return "", nil, err
+	}
+
+	switch opt.Type {
+	case Diff:
+		req.Header.Set("Accept", mediaTypeV3Diff)
+	case Patch:
+		req.Header.Set("Accept", mediaTypeV3Patch)
+	default:
+		return "", nil, fmt.Errorf("unsupported raw type %d", opt.Type)
+	}
+
+	var buf bytes.Buffer
+	resp, err := s.client.Do(ctx, req, &buf)
+	if err != nil {
+		return "", resp, err
+	}
+
+	return buf.String(), resp, nil
+}
+
 // GetCommitSHA1 gets the SHA-1 of a commit reference. If a last-known SHA1 is
 // supplied and no new commits have occurred, a 304 Unmodified response is returned.
 //