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

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

@@ -0,0 +1,22 @@
+{stdenv, buildOcaml, fetchurl, async, core, core_extended}:
+
+buildOcaml rec {
+  name = "async_shell";
+  version = "109.28.03";
+
+  minimumSupportedOcamlVersion = "4.02";
+
+  src = fetchurl {
+    url = "https://github.com/janestreet/async_shell/archive/${version}.tar.gz";
+    sha256 = "0b4497bea9124c5a665ee58fb0a73c5cbf2f757479df902e6870627196e6c105";
+  };
+
+  propagatedBuildInputs = [ async core core_extended ];
+
+  meta = with stdenv.lib; {
+    homepage = https://github.com/janestreet/async_shell;
+    description = "Shell helpers for Async";
+    license = licenses.asl20;
+    maintainers = [ maintainers.ericbmerritt ];
+  };
+}