dterm: move to applications/terminal-emulators

Also, use SRI hash and add a `longDescription`.

pkgs/applications/terminal-emulators/dterm/default.nix

···
+{ lib
+, stdenv
+, fetchurl
+, readline
+}:
+
+stdenv.mkDerivation rec {
+  pname = "dterm";
+  version = "0.5";
+
+  src = fetchurl {
+    url = "http://www.knossos.net.nz/downloads/dterm-${version}.tgz";
+    hash = "sha256-lFM7558e7JZeWYhtXwCjXLZ1xdsdiUGfJTu3LxQKvds=";
+  };
+
+  buildInputs = [ readline ];
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace 'gcc' '${stdenv.cc.targetPrefix}cc'
+  '';
+
+  preInstall = "mkdir -p $out/bin";
+
+  installFlags = [ "BIN=$(out)/bin/" ];
+
+  meta = with lib; {
+    homepage = "http://www.knossos.net.nz/resources/free-software/dterm/";
+    description = "A simple terminal program";
+    longDescription = ''
+      dterm is a simple terminal emulator, which doesn’t actually emulate any
+      particular terminal. Mainly, it is designed for use with xterm and
+      friends, which already do a perfectly good emulation, and therefore don’t
+      need any special help; dterm simply provides a means by which keystrokes
+      are forwarded to the serial line, and data forwarded from the serial line
+      appears on the terminal.
+    '';
+    license = licenses.gpl2Only;
+    maintainers = with maintainers; [ auchter ];
+    platforms = platforms.unix;
+  };
+}

pkgs/tools/misc/dterm/default.nix

···
-{ lib, stdenv, fetchurl, readline }:
-
-stdenv.mkDerivation rec {
-  pname = "dterm";
-  version = "0.5";
-
-  src = fetchurl {
-    url = "http://www.knossos.net.nz/downloads/dterm-${version}.tgz";
-    sha256 = "94533be79f1eec965e59886d5f00a35cb675c5db1d89419f253bb72f140abddb";
-  };
-
-  buildInputs = [ readline ];
-  postPatch = ''
-    substituteInPlace Makefile \
-      --replace 'gcc' '${stdenv.cc.targetPrefix}cc'
-  '';
-  preInstall = "mkdir -p $out/bin";
-  installFlags = [ "BIN=$(out)/bin/" ];
-
-  meta = with lib; {
-    homepage = "http://www.knossos.net.nz/resources/free-software/dterm/";
-    description = "A simple terminal program";
-    license = licenses.gpl2Only;
-    maintainers = with maintainers; [ auchter ];
-    platforms = platforms.unix;
-  };
-}

pkgs/top-level/all-packages.nix

···
 
   cope = callPackage ../tools/misc/cope { };
 
-  dterm = callPackage ../tools/misc/dterm { };
-
   ejson2env = callPackage ../tools/admin/ejson2env { };
 
   davinci-resolve = callPackage ../applications/video/davinci-resolve { };
···
   ctx = callPackage ../applications/terminal-emulators/ctx { };
 
   darktile = callPackage ../applications/terminal-emulators/darktile { };
+
+  dterm = callPackage ../applications/terminal-emulators/dterm { };
 
   eterm = callPackage ../applications/terminal-emulators/eterm { };