Fixed a bug in whoami check.

envsetup.py

@@ -65,7 +65,7 @@ class EnvSetup():
         self.debug = '-d' in args
         if self.debug:
             args.remove('-d')
-        whoami = subprocess.check_output(['whoami']).decode('utf-8')
+        whoami = subprocess.check_output(['whoami']).decode('utf-8').strip()
         if whoami != 'root' and not self.debug:
             log('This script should be run as root user.')
             sys.exit(1)

tester.py

@@ -60,7 +60,7 @@ class Tester():
         debug = '-d' in args
         if debug:
             args.remove('-d')
-        whoami = subprocess.check_output(['whoami']).decode('utf-8')
+        whoami = subprocess.check_output(['whoami']).decode('utf-8').strip()
         if whoami != 'root' and not debug:
             log('This script should be run as root user.')
             sys.exit(1)