Optimizing the Method of Obtaining CPU Version Information

[ut003460]

1. By using the get() method to obtain matching patterns, it avoids using try exception to capture KeyError exceptions.
2. Immediately return the result after finding the version number to avoid unnecessary iteration.
3. Use an empty string as the default return result to avoid returning None

[richtja]

Hi @ut003460, thank you for your contribution in Avocado. Before we will do review, can you please write down into a commit message a better description of your changes with explanation and your signature. You can follow our contribution guidelines. You can do the changes with force-push and If you need any help, don't hesitate to ask.

[ut003460]

Hi @ut003460, thank you for your contribution in Avocado. Before we will do review, can you please write down into a commit message a better description of your changes with explanation and your signature. You can follow our contribution guidelines. You can do the changes with force-push and If you need any help, don't hesitate to ask.

Thank you for the reminder. A note has been added