pushd and popd are noisy

bin/ruby-build

@@ -48,11 +48,11 @@ install_package_using() {
   local package_name="$3"
   shift 3
 
-  pushd "$TEMP_PATH"
+  pushd "$TEMP_PATH" >&4
   "fetch_${package_type}" "$package_name" $*
   shift $(($package_type_nargs))
   make_package "$package_name" $*
-  popd
+  popd >&4
 
   echo "Installed ${package_name} to ${PREFIX_PATH}" >&2
 }
@@ -61,11 +61,11 @@ make_package() {
   local package_name="$1"
   shift
 
-  pushd "$package_name"
+  pushd "$package_name" >&4
   build_package "$package_name" $*
   after_install_package "$package_name"
   fix_directory_permissions
-  popd
+  popd >&4
 
   echo "Installed ${package_name} to ${PREFIX_PATH}" >&2
 }