If the value of a is None, interpolate '', not 'None'.
authorstevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Thu, 18 Oct 2001 03:01:47 +0000 (03:01 +0000)
committerstevenknight <stevenknight@fdb21ef1-2011-0410-befe-b5e4ea1792b1>
Thu, 18 Oct 2001 03:01:47 +0000 (03:01 +0000)
commit564a65e3f1245a2d6520b1354681a24b5909d4ac
tree2fd22bcf9c45ebe46fa1243a5521b1eebfe0b671
parent68324cd1ba1439c0cc0ca029e93427ccc19a42f7
If the value of a  is None, interpolate '', not 'None'.

git-svn-id: http://scons.tigris.org/svn/scons/trunk@104 fdb21ef1-2011-0410-befe-b5e4ea1792b1
src/engine/SCons/Util.py
src/engine/SCons/UtilTests.py