You can use your favorite text editor to modify the appropriate savedsearches.conf file then restart Splunk. The file to modify depends on the app in which your alerts are defined. It will be $SPLUNK_HOME/etc/apps/myapp/local/savedsearches.conf.
Thanks for your answer @richgalloway
Please forgive my ignorance, still new to the Splunk world.
I have been reading up about your suggestion. Just like to confirm my approach...
Am I correct to say I need to add the following to my savedsearch.conf file...
alert.name = "Splunk $name"
And after this update would I need to update any metadata files?
Your savedsearches.conf file should already contain
alert.name attributes. You only need to modify those values to suit your needs. There is no need to update the metadata files.