THRIFT-1815 Code generators line buffer output - Go compiler

Patch: Jens Geyer
diff --git a/compiler/cpp/src/generate/t_go_generator.cc b/compiler/cpp/src/generate/t_go_generator.cc
index ad64956..b962378 100644
--- a/compiler/cpp/src/generate/t_go_generator.cc
+++ b/compiler/cpp/src/generate/t_go_generator.cc
@@ -39,7 +39,12 @@
 #include "platform.h"
 #include "version.h"
 
-using namespace std;
+using std::map;
+using std::ofstream;
+using std::ostringstream;
+using std::string;
+using std::stringstream;
+using std::vector;
 
 static const string endl = "\n";  // avoid ostream << std::endl flushes