Eradicate gzip -9 without -n

nixos/modules/system/boot/stage-1.nix

@@ -326,7 +326,7 @@ in
 
     boot.initrd.compressor = mkOption {
       internal = true;
-      default = "gzip -9";
+      default = "gzip -9n";
       type = types.str;
       description = "The compressor to use on the initrd image.";
       example = "xz";

pkgs/development/compilers/qcmm/builder.sh

@@ -16,7 +16,7 @@ installPhase() {
     mv $file ${file%.opt}
   done
 
-  find $out/man -type f -exec gzip -9 {} \;
+  find $out/man -type f -exec gzip -9n {} \;
 
   find $out -name \*.a -exec echo stripping {} \; \
             -exec strip -S {} \;

pkgs/os-specific/linux/multipath-tools/default.nix

@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   preBuild =
     ''
-      makeFlagsArray=(GZIP="${gzip}/bin/gzip -9 -c" prefix=$out mandir=$out/share/man/man8 man5dir=$out/share/man/man5 LIB=lib)
+      makeFlagsArray=(GZIP="${gzip}/bin/gzip -9n -c" prefix=$out mandir=$out/share/man/man8 man5dir=$out/share/man/man5 LIB=lib)
       
       substituteInPlace multipath/Makefile --replace /etc $out/etc
       substituteInPlace kpartx/Makefile --replace /etc $out/etc