autorevision: specify full paths to 'sed' and 'tee'

pkgs/tools/misc/autorevision/default.nix

@@ -1,5 +1,5 @@
 { stdenv, fetchurl, asciidoc, libxml2, docbook_xml_dtd_45, libxslt
-, docbook_xsl, diffutils, coreutils, gnugrep
+, docbook_xsl, diffutils, coreutils, gnugrep, gnused
 }:
 
 stdenv.mkDerivation rec {
@@ -21,6 +21,8 @@ stdenv.mkDerivation rec {
     sed -e "s|cmp|${diffutils}/bin/cmp|" \
         -e "s|cat|${coreutils}/bin/cat|" \
         -e "s|grep|${gnugrep}/bin/grep|" \
+        -e "s|\<sed\>|${gnused}/bin/sed|" \
+        -e "s|\<tee\>|${coreutils}/bin/tee|" \
         -i "$out/bin/autorevision"
   '';