third_party/protobuf: Update to HEAD (83d681ee2c)

third_party/protobuf/src/google/protobuf/io/tokenizer.h

Index: third_party/protobuf/src/google/protobuf/io/tokenizer.h
diff --git a/third_party/protobuf/src/google/protobuf/io/tokenizer.h b/third_party/protobuf/src/google/protobuf/io/tokenizer.h
index 64ee7d8475d8d89c71e60037e28f1a42d986700e..77a873bce858fa431157c5fa4ae4c9ba11a4cc85 100644
--- a/third_party/protobuf/src/google/protobuf/io/tokenizer.h
+++ b/third_party/protobuf/src/google/protobuf/io/tokenizer.h
@@ -329,7 +329,7 @@ class LIBPROTOBUF_EXPORT Tokenizer {
   // depending on what was read.  This needs to know if the first
   // character was a zero in order to correctly recognize hex and octal
   // numbers.
-  // It also needs to know if the first characted was a . to parse floating
+  // It also needs to know if the first character was a . to parse floating
   // point correctly.
   TokenType ConsumeNumber(bool started_with_zero, bool started_with_dot);