whether we are using MKS Korn shell by searching for semicolons (;) in the
PATH. Actually cygwin-wrapper works under MKS Korn shell, but it suddenly
stopped working on our Windows NT build machine recently, and I can't
figure out why.
git-svn-id: svn://10.0.0.236/trunk@140007 18797224-902f-48f8-a5cc-f745e15eee43