gnuradio: lndir to $man properly (#479311)

pkgs/applications/radio/gnuradio/wrapper.nix

@@ -9,7 +9,7 @@
   # For the wrapper
   makeWrapper,
   # For lndir
-  xorg,
+  lndir,
   # To define a the gnuradio.pkgs scope
   newScope,
   # For Emulating wrapGAppsHook3
@@ -222,13 +222,16 @@ let
           ;
         nativeBuildInputs = [
           makeWrapper
-          xorg.lndir
+          lndir
         ];
         buildCommand = ''
-          mkdir $out
+          ${builtins.concatStringsSep "\n" (
+            map (output: ''
+              mkdir ''$${output}
+              lndir -silent ${unwrapped.${output}} ''$${output}
+            '') outputs
+          )}
           cd $out
-          lndir -silent ${unwrapped.out}
-          lndir -silent ${unwrapped.man}
           ${lib.optionalString (extraPackages != [ ]) (
             builtins.concatStringsSep "\n" (
               map (pkg: ''
@@ -246,7 +249,7 @@ let
             mv -f "$i".tmp "$i"
             if head -1 "$i" | grep -q ${unwrapped.python}; then
               substituteInPlace "$i" \
-                --replace ${unwrapped.python} ${pythonEnv}
+                --replace-fail ${unwrapped.python} ${pythonEnv}
             fi
             wrapProgram "$i" ${makeWrapperArgs}
           done