Rename comments and documentation.

OpenRA.Mods.Common/Traits/Crates/LevelUpCrateAction.cs

@@ -50,11 +50,11 @@ namespace OpenRA.Mods.Common.Traits
 		{
 			var inRange = self.World.FindActorsInCircle(self.CenterPosition, info.Range).Where(a =>
 			{
-				// Don't upgrade the same unit twice
+				// Don't touch the same unit twice
 				if (a == collector)
 					return false;
 
-				// Only upgrade the collecting player's units
+				// Only affect the collecting player's units
 				// TODO: Also apply to allied units?
 				if (a.Owner != collector.Owner)
 					return false;