lorri: unstable-2019-10-30 -> unstable-2020-01-09

`rustfmt` is now a compile time dependency because the varlink generated
code is formatted with it.

pkgs/tools/misc/lorri/runtime.nix

@@ -1,9 +1,13 @@
 {
   # Plumbing tools:
-  closureInfo, runCommand, writeText, buildEnv,
-
-  # Actual dependencies to propagate:
-  bash, coreutils }:
+  closureInfo
+, runCommand
+, writeText
+, buildEnv
+, # Actual dependencies to propagate:
+  bash
+, coreutils
+}:
 let
   tools = buildEnv {
     name = "lorri-runtime-tools";
@@ -15,19 +19,20 @@ let
   };
 
   closureToNix = runCommand "closure.nix" {}
-  ''
-    (
-      echo '{ dep, ... }: ['
-      sed -E 's/^(.*)$/    (dep \1)/' ${runtimeClosureInfo}/store-paths
-      echo ']'
-    ) > $out
-  '';
+    ''
+      (
+        echo '{ dep, ... }: ['
+        sed -E 's/^(.*)$/    (dep \1)/' ${runtimeClosureInfo}/store-paths
+        echo ']'
+      ) > $out
+    '';
 
   runtimeClosureInfoAsNix = runCommand "runtime-closure.nix" {
     runtime_closure_list = closureToNix;
     tools_build_host = tools;
   }
-  ''
-    substituteAll ${./runtime-closure.nix.template} $out
-  '';
-in runtimeClosureInfoAsNix
+    ''
+      substituteAll ${./runtime-closure.nix.template} $out
+    '';
+in
+runtimeClosureInfoAsNix