Add toString method to the little<TYPE> and little_pod<TYPE> classes, and fix mongo/logger/log_test failure

Author: bryanpkc

src/mongo/bson/util/bswap.h

@@ -184,6 +184,12 @@ namespace mongo {
                                                                         \
       friend Nullstream& operator<<( Nullstream& ost, MYTYPE val ) {    \
           return ost << T(val);                                         \
+      }                                                                 \
+                                                                        \
+      std::string toString() const {                                    \
+          std::stringstream ss;                                         \
+          ss << this;                                                   \
+          return ss.str();                                              \
       }
 
 

src/mongo/logger/logstream_builder.h

@@ -103,7 +103,7 @@ namespace logger {
 
         template <typename T>
         LogstreamBuilder& operator<<(const T& x) {
-            //stream() << x.toString();
+            stream() << x.toString();
             return *this;
         }