Fix libprotoc.cmake to generate well_known_types_embed.cc
Fix libprotoc.cmake to generate well_known_types_embed.cc

Unfortunate typo. Just one extra ',' symbol, has led to the hidden implicit behavior.

Now everything will be fine.

Livefyre/protobuf,Livefyre/protobuf,google/protobuf,google/protobuf,Livefyre/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,Livefyre/protobuf,Livefyre/protobuf,google/protobuf,google/protobuf,google/protobuf