Fixed tc_enter_chroot.py to behave more like tc-enter-chroot.sh in accepting
 --chrome_root, for example.
 Fixed a minor problem in build_chromeos.py.

PRESUBMIT=passed
R=raymes,bjanakiraman
DELTA=28  (22 added, 0 deleted, 6 changed)
RCL=45286-p2
RDATE=2010/11/17 17:50:47


P4 change: 42606283
diff --git a/v14/build_tc.py b/v14/build_tc.py
index d100947..51fde50 100755
--- a/v14/build_tc.py
+++ b/v14/build_tc.py
@@ -141,7 +141,7 @@
   else:
     tflag = " -t "
 
-  command = "sudo " + env
+  command = " -- sudo " + env
 
   if uninstall == True:
     command += " crossdev " + tflag + target