Argv[0] isn't the first argument to anything.



git-svn-id: http://skia.googlecode.com/svn/trunk@7687 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/find_mac_sdk.py b/tools/find_mac_sdk.py
index 6ffee38..3fe9c3c 100755
--- a/tools/find_mac_sdk.py
+++ b/tools/find_mac_sdk.py
@@ -42,8 +42,8 @@
 
 def main():
   min_sdk_version = '10.6'
-  if len(sys.argv) > 0:
-    min_sdk_version = sys.argv[0]
+  if len(sys.argv) > 1:
+    min_sdk_version = sys.argv[1]
 
   sdk_dir = find_sdk_dir()
 
@@ -53,7 +53,7 @@
           if parse_version(s) >= parse_version(min_sdk_version)]
   if not sdks:
     raise Exception('No %s+ SDK found' % min_sdk_version)
-  best_sdk = sorted(sdks, key=parse_version)[0]
+  best_sdk = min(sdks, key=parse_version)
 
   return best_sdk