Update building_from_source.po
diff --git a/source/locale/zh_CN/LC_MESSAGES/building_from_source.po b/source/locale/zh_CN/LC_MESSAGES/building_from_source.po
index ce68b1a..10964e3 100644
--- a/source/locale/zh_CN/LC_MESSAGES/building_from_source.po
+++ b/source/locale/zh_CN/LC_MESSAGES/building_from_source.po
@@ -561,10 +561,10 @@
#: ../../building_from_source.rst:446
msgid ""
"You may also need to download `vhd-util "
-"<http://download.cloud.com.s3.amazonaws.com/tools/vhd-util>`_, which was "
+"<http://download.cloudstack.org/tools/vhd-util>`_, which was "
"removed due to licensing issues. You'll copy vhd-util to the "
"``scripts/vm/hypervisor/xenserver/`` directory."
-msgstr "你可能还需要下载`vhd-util <http://download.cloud.com.s3.amazonaws.com/tools/vhd-util>`_, 也是由于授权问题而被移除。 复制vhd-util到该目录： ``scripts/vm/hypervisor/xenserver/``."
+msgstr "你可能还需要下载`vhd-util <http://download.cloudstack.org/tools/vhd-util>`_, 也是由于授权问题而被移除。 复制vhd-util到该目录： ``scripts/vm/hypervisor/xenserver/``."
# bfbd7215ff0345f183a7946f620b1368
#: ../../building_from_source.rst:451
