adds equivalence for Sebastian Graessl
adds equivalence for Sebastian Graessl

maclover7/rails-contributors,maclover7/rails-contributors,gitlabhq/gitlab-contributors,gitlabhq/gitlab-contributors,amitsuroliya/rails-contributors,fxn/rails-contributors,amitsuroliya/rails-contributors,fxn/rails-contributors,gitlabhq/gitlab-contributors,fxn/rails-contributors,maclover7/rails-contributors,maclover7/rails-contributors,amitsuroliya/rails-contributors,fxn/rails-contributors,amitsuroliya/rails-contributors,gitlabhq/gitlab-contributors