opscode/chef — comment on commit 2efbafeae9ec09a7f7f8c77009bd6994d7706b03
File: chef/lib/chef/shell_out/windows.rb line 158
By pmorton:

This is an incorrect implementation. It looks like this will find the first space in the command and assume that that is the executable to start. In truth, this should be the first argument enclosed in quotes or the first white space or the whole command.