tree eaeef4183455a6c7d2324d86046368e952dda33e
parent 521cd3ce67a3621dbbad906f8402dbde8a1e9e63
author Shawn O. Pearce <sop@google.com> 1237302184 -0700
committer Shawn O. Pearce <sop@google.com> 1237302184 -0700

Set forall environment variables to empty string if None

If the value obtained is None we now set the variable to
'' instead, in an attempt to make execve() happier about
our 3rd argument, the env dictionary.

Signed-off-by: Shawn O. Pearce <sop@google.com>