Revert "ocaml-modules: fix naming: "_" -> "-""

pkgs/development/ocaml-modules/erm_xml/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, fetchzip, ocaml, findlib }:
+
+let version = "0.3"; in
+
+stdenv.mkDerivation {
+  name = "ocaml-erm_xml-${version}";
+
+  src = fetchzip {
+    url = "https://github.com/ermine/xml/archive/v${version}.tar.gz";
+    sha256 = "19znk5w0qiw3wij4n6w3h5bcr221yy57jf815fr8k9m8kin710g3";
+  };
+
+  buildInputs = [ ocaml findlib ];
+
+  createFindlibDestdir = true;
+
+  meta = {
+    homepage = https://github.com/ermine/xml;
+    description = "XML Parser for discrete data";
+    platforms = ocaml.meta.platforms;
+    license = stdenv.lib.licenses.bsd3;
+    maintainers = with stdenv.lib.maintainers; [ vbgl ];
+  };
+}