console_handler: check for eof before trying to use input

We'll get there without input if we exited

contrib/epee/include/console_handler.h

@@ -274,14 +274,15 @@ namespace epee
         }
 
         std::string command;
-        if(!m_stdin_reader.get_line(command))
+        bool get_line_ret = m_stdin_reader.get_line(command);
-        {
-          LOG_PRINT("Failed to read line.", LOG_LEVEL_0);
-        }
         if (m_stdin_reader.eos())
         {
           break;
         }
+        if (!get_line_ret)
+        {
+          LOG_PRINT("Failed to read line.", LOG_LEVEL_0);
+        }
         string_tools::trim(command);
 
         LOG_PRINT_L2("Read command: " << command);