verilator_gantt: Fix argument report omitting last digits

src/V3Hasher.cpp

@@ -81,7 +81,7 @@ private:
 
     virtual void visit(AstNode* nodep) override {
 #if VL_DEBUG
-        UINFO(0, "%Warning: Hashing node as AstNode: " << nodep);
+        UINFO(0, "%Warning: Hashing node as AstNode: " << nodep << endl);
 #endif
         m_hash += hashNodeAndIterate(nodep, HASH_DTYPE, HASH_CHILDREN, [=]() {});
     }