boost: wrong unpacking command

+1 -1
+1 -1
pkgs/development/libraries/boost/1.52-headers.nix
··· 12 13 installPhase = '' 14 mkdir -p $out/include 15 - tar xf $src -C $out/include --strip-components=1 ./boost_1_52_0/boost 16 ''; 17 18 meta = {
··· 12 13 installPhase = '' 14 mkdir -p $out/include 15 + tar xf $src -C $out/include --strip-components=1 boost_1_52_0/boost 16 ''; 17 18 meta = {