That solution is rather clunky. I have created a couple of simple Tasker profiles to get rid of this annoying notification. Works flawlessly for me. What it does is it shuts off GPS when the screen turns off, and restarts it after a short delay when the screen turns on. The delay is the real key here, as it circumvents the initial GPS search and, hence, no annoying message. Google Maps and Google Nav are not affected, as the GPS is always on when the screen is on, i.e. GPS is on whenever it is actually needed and off only if it is not needed. And, these profiles do not significantly impact battery, as they are Event triggered rather than State triggered. In fact, it probably saves battery, given that it turns GPS off when it's not needed. There are two profiles needed, which I have called "GPS Suspend" and "GPS Restart." Their associated tasks both utilize the Secure Settings plug-in which is needed to turn GPS on or off. As you will see, I have also added "If" conditions to each task's GPS command, to ensure that the command is executed if and only if the screen is in the correct (on/off) phase.
Here are the profiles and their associated tasks...
Profile: GPS Suspend
Event: Display Off
Enter: GPS Suspend
A1: Secure Settings [ Configuration:GPS Disabled Timeout (Seconds):0 ] If [ %SCREEN ~ off ]
Profile: GPS Restart
Event: Display On
Enter: GPS Resart
A1: Wait [ MS:0 Seconds:3 Minutes:0 HConfiguration:GPS:enabledours:0 Days:0 ]
A2: Secure Settings [ Timeout (Seconds):0 ] If [ %SCREEN ~ on ]
Try it and see!
modestdave