[chirp_users] run_tests script

The run_test script no longer runs on my Windows computer.

C:\Users\Root\chirp.hg\tests>python run_tests Traceback (most recent call last): File "run_tests", line 30, in <module> os.chdir(scriptdir) WindowsError: [Error 123] The filename, directory name, or volume label syntax i s incorrect: ''

Zach, any thoughts!

Jim KC9HI