THRIFT-3443 Thrift include can generate uncompilable code
Client: Go Compiler
Patch: Nobuaki Sukegawa

This closes #709
diff --git a/compiler/cpp/src/generate/t_go_generator.cc b/compiler/cpp/src/generate/t_go_generator.cc
index b198d48..cd03359 100644
--- a/compiler/cpp/src/generate/t_go_generator.cc
+++ b/compiler/cpp/src/generate/t_go_generator.cc
@@ -782,7 +782,7 @@
       }
     }
 
-    result += "\t\"" + gen_package_prefix_ + go_module + "\"\n";
+    result += "\t_ \"" + gen_package_prefix_ + go_module + "\"\n";
   }
 
   return result;