remove extra newline; closes ocamllabs/rwo-comments#2196
remove extra newline; closes ocamllabs/rwo-comments#2196

nasrallahmounir/examples,realworldocaml/examples,devsmt/realworldocaml_examples,nasrallahmounir/examples,nasrallahmounir/examples,devsmt/realworldocaml_examples,nasrallahmounir/examples,nasrallahmounir/examples,realworldocaml/examples,devsmt/realworldocaml_examples,realworldocaml/examples,devsmt/realworldocaml_examples,realworldocaml/examples