Even more coding style cleanup

Fixing some more pylint warnings:

W1401: Anomalous backslash in string
W0623: Redefining name 'name' from outer scope
W0702: No exception type(s) specified
E0102: name: function already defined line n

Change-Id: I5afcdb4771ce210390a79981937806e30900a93c
diff --git a/command.py b/command.py
index 0c3b360..babb833 100644
--- a/command.py
+++ b/command.py
@@ -71,7 +71,7 @@
     groups = mp.config.GetString('manifest.groups')
     if not groups:
       groups = 'all,-notdefault,platform-' + platform.system().lower()
-    groups = [x for x in re.split('[,\s]+', groups) if x]
+    groups = [x for x in re.split(r'[,\s]+', groups) if x]
 
     if not args:
       for project in all_projects.values():