CGI scripts currently specify a mix of 'perl -w' and 'perl -wT'; fix that.

In order to run the Win32 Apache and be able to reuse the existing
CGI scripts in the tests, we have to jump through some hoops and those
hoops do not support having mixed command lines in the shebang lines for
a given executable.

R=scottmg@chromium.org
BUG=30536

Review URL: https://codereview.chromium.org/153913005

git-svn-id: svn://svn.chromium.org/blink/trunk@166557 bbb929c8-8fbe-4397-9dbb-9b2b20218538