Fix grammar in cth macro

Also fix whitespace errors from edab243b9d -- GL

Closes #3694

data/core/macros/utils.cfg

@@ -514,7 +514,7 @@
     #!         greater_than=10
     #!     [/variable]
     #! )}
-    # WARNING : if an unit must disappear in mid-battle before attack end was fired, recreate unit instead to unstore or cth modifications
+    # WARNING : if an unit must disappear in mid-battle before attack end was fired, don't use [unstore_unit] but recreate unit or cth modifications
     # persist. Or don't use this macro.
     [event]
         name=attack

data/scenario-test.cfg

@@ -4070,28 +4070,28 @@ unplagueable: $wml_unit.status.unplagueable"
             type=Silver Mage
         [/filter]
 
-       [store_unit]
-	    [filter]
+        [store_unit]
+            [filter]
                 id=$unit.id
-	    [/filter]
-		variable=blink_test
-		kill=yes
-	[/store_unit]
+            [/filter]
+            variable=blink_test
+            kill=yes
+        [/store_unit]
     [/event]
     [event]
-	name=turn 2
-	[unstore_unit]
-		variable=blink_test
-		x,y=17,3
-	[/unstore_unit]
-	[unit]
-		side=2
-		x,y=18,3
-		type="Orcish Archer"
-		generate_name=yes
-		jamming=5
-	[/unit]
-[/event]
+        name=turn 2
+        [unstore_unit]
+            variable=blink_test
+            x,y=17,3
+        [/unstore_unit]
+        [unit]
+            side=2
+            x,y=18,3
+            type="Orcish Archer"
+            generate_name=yes
+            jamming=5
+        [/unit]
+    [/event]
 [/test]
 
 [units]