Fix sync script: using shell for windows

rogerwang · rogerwang · commit bfcc122d7a51 · 2018-09-25T00:11:33.000-06:00
diff --git a/tools/sync.py b/tools/sync.py
@@ -23,4 +23,4 @@
 print gclient_root
 
 os.chdir(gclient_root)
-sys.exit(sp.call(cmd))
+sys.exit(sp.call(cmd, shell=True))
