Merge pull request #1220 from chef/tm/bump_lzma

Bump LZMA to latest

Author: tas50

omnibus_overrides.rb

@@ -3,7 +3,7 @@
 override :bundler, version: "1.12.5"
 override "libffi", version: "3.2.1"
 override "libiconv", version: "1.14"
-override "liblzma", version: "5.2.2"
+override "liblzma", version: "5.2.3"
 override "libtool", version: "2.4.2"
 override "libxml2", version: "2.9.4"
 override "libxslt", version: "1.1.29"