runCommand*: Rely on mkDerivation to sanitize name

pkgs/build-support/trivial-builders.nix

@@ -70,8 +70,7 @@ rec {
     # name of the resulting derivation
     }: buildCommand:
     stdenv.mkDerivation ({
-      name = lib.strings.sanitizeDerivationName name;
-      inherit buildCommand;
+      inherit buildCommand name;
       passAsFile = [ "buildCommand" ]
         ++ (derivationArgs.passAsFile or []);
     }