[1.0.0] Incorrect inserter status when waiting for space in turrets

[Phog]

On mouseover, inserters show a status about how they are operating.

There's a small bug in the status string used for gun turrets: it loads some ammo in then says "Waiting for source items" even though source items are available.

inserterstatusbug.jpg (589.47 KiB) Viewed 702 times

To be consistent with other machines/inventories, it should probably read "Waiting for space in destination".

I know it seems super minor but a friend I just introduced to Factorio got confused by this. It's one of the early uses of inserters and he thought it was a problem with his layout.

[Loewchen]

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