ddrescue: split man & info outputs (#488365)

pkgs/by-name/dd/ddrescue/package.nix

@@ -19,9 +19,14 @@ stdenv.mkDerivation (finalAttrs: {
   doCheck = true; # not cross;
   configureFlags = [ "CXX=${stdenv.cc.targetPrefix}c++" ];
 
+  outputs = [
+    "out"
+    "man"
+    "info"
+  ];
+
   meta = {
     description = "GNU ddrescue, a data recovery tool";
-
     longDescription = ''
       GNU ddrescue is a data recovery tool.  It copies data from one file
       or block device (hard disc, cdrom, etc) to another, trying hard to
@@ -44,11 +49,8 @@ stdenv.mkDerivation (finalAttrs: {
       low.  Using the logfile, only the needed blocks are read from the
       second and successive copies.
     '';
-
     homepage = "https://www.gnu.org/software/ddrescue/ddrescue.html";
-
     license = lib.licenses.gpl3Plus;
-
     platforms = lib.platforms.all;
     maintainers = with lib.maintainers; [
       fpletz