This patch corrects an error encountered in PB where Windows machines
are built in release mode have an extraneous parameter added in place
of the --console option. This is caused by the insert of '(null'
instead of an empty string. In non-debug mode, the string is explicitly
set to an empty string.
Patch also fixes a result mismatch on Windows machines.
This patch corrects an unsafe string concatenation for a Windows-specific
code segment. The symptoms were, under certain conditions like specifying
the location of my-print-defaults and the basedir, and run on a release
build, the client would exit without printing any messages.
