utils.py: Don't error if an exported environment variable is unset (i.e. None)
authorRichard Purdie <rpurdie@linux.intel.com>
Fri, 12 Feb 2010 13:50:19 +0000 (13:50 +0000)
committerRichard Purdie <rpurdie@linux.intel.com>
Mon, 15 Feb 2010 16:57:30 +0000 (16:57 +0000)
commit57cec31f4d5918ce219a1586746fe1301492edb9
treef07727e9c92b21024ed060ea5ad514d8eaae2c08
parent8c8c2e6665b26c3e3c83f6e97f4b7e95a0e8e3f8
utils.py: Don't error if an exported environment variable is unset (i.e. None)

(From Poky rev: 62c103ce0e154ee5bf6183987adc90fc6df154c6)

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
lib/bb/utils.py