Fix the version number for 3.0.2

src/google/protobuf/stubs/common.h

@@ -96,7 +96,7 @@ namespace internal {
 
 // The current version, represented as a single integer to make comparison
 // easier:  major * 10^6 + minor * 10^3 + micro
-#define GOOGLE_PROTOBUF_VERSION 3000000
+#define GOOGLE_PROTOBUF_VERSION 3000002
 
 // The minimum library version which works with the current version of the
 // headers.