Minor change affecting those who may start this script in a directory path that has been removed, likely as the result of an install.  The problem when this occurs is with some os.system commands.  Sometimes the resulting errcode is correct, sometimes not.  This insures this will not happen.
Minor change affecting those who may start this script in a directory path
that has been removed, likely as the result of an install.  The problem when
this occurs is with some os.system commands.  Sometimes the resulting
errcode is correct, sometimes not.  This insures this will not happen.

holzman/glideinwms-old,holzman/glideinwms-old,holzman/glideinwms-old