Fix syntax error in setup.py

gorail/setup.py

@@ -13,7 +13,7 @@ def start(args, logfile, errfile):
     subprocess.Popen("setup.bat", shell=True, cwd="go", stderr=errfile, stdout=logfile) 
     return 0
   os.environ["GOPATH"] = os.path.expanduser('~/FrameworkBenchmarks/gorail')
-  subprocess.call("go get -u github.com/gorail/core", shell=True, cwd="gorail", env=env, stderr=errfile, stdout=logfile)
+  subprocess.call("go get -u github.com/gorail/core", shell=True, cwd="gorail", stderr=errfile, stdout=logfile)
   subprocess.call("go get ./...", shell=True, cwd="go", stderr=errfile, stdout=logfile) 
   subprocess.Popen("go run src/hello/hello.go".rsplit(" "), cwd="go", stderr=errfile, stdout=logfile)
   return 0