[yocto] $HOME use in DL_DiR

[Rifenbark, Scott M]

HI, 

I recently used $HOME as part of a path in the DL_DIR variable in my local.conf.  This caused bad things to happen during the build.  It essentially created a "never-ending" directory structure inside my build directory and the build failed.  I would like place a note in the glossary entry for the DL_DIR variable.  Can anyone provide some general reasons why a user should not use $HOME as part of the DL_DIR path that goes beyond "it will break the build"?

Thanks,
Scott

Scott Rifenbark
Intel Corporation
Yocto Project Documentation
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