[Werror][GCC9] fix -Werror=format-security

[engineer1109]

PR types

Bug fixes

PR changes

Others

Description

GCC9遇到如下编译Werror

/media/wjl/D2/github/fork/10/Paddle/paddle/fluid/inference/tensorrt/convert/generic_and_custom_plugin_creater.cc: In member function ‘virtual void paddle::inference::tensorrt::CustomPluginCreater::operator()(const paddle::framework::proto::OpDesc&, const paddle::framework::Scope&, bool)’:
/media/wjl/D2/github/fork/10/Paddle/paddle/fluid/inference/tensorrt/convert/generic_and_custom_plugin_creater.cc:81:77: error: format not a string literal and no format arguments [-Werror=format-security]
   81 |           plugin_attr_name.data(), attr_name.length() + 1, attr_name.c_str());

对于

      snprintf(
          plugin_attr_name.data(), attr_name.length() + 1, attr_name.c_str());

这样是不合理的。必须有"%s"这样的字符串表达式，作为第三个参数，而不是变量attr_name.c_str()

修改如下：

      snprintf(plugin_attr_name.data(),
               attr_name.length() + 1,
               "%s",
               attr_name.c_str());

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[engineer1109]

#47143
@luotao1

[zhangbo9674]

LGTM