Update third_party/protobuf to protobuf-v3.0.0-beta-3

third_party/protobuf/objectivec/DevTools/pddm.py

Index: third_party/protobuf/objectivec/DevTools/pddm.py
diff --git a/third_party/protobuf/objectivec/DevTools/pddm.py b/third_party/protobuf/objectivec/DevTools/pddm.py
index d1b53f5a759e9548784bdfce576a55ac4b0a837f..9a11fec449ed79eeae66dea6d5d250d0bb1f3953 100755
--- a/third_party/protobuf/objectivec/DevTools/pddm.py
+++ b/third_party/protobuf/objectivec/DevTools/pddm.py
@@ -625,8 +625,7 @@ class SourceFile(object):
 def main(args):
   usage = '%prog [OPTIONS] PATH ...'
   description = (
-      'Processes PDDM directives in the the given paths and write them back'
-      ' out.'
+      'Processes PDDM directives in the given paths and write them back out.'
   )
   parser = optparse.OptionParser(usage=usage, description=description)
   parser.add_option('--dry-run',