(svn r3078) Some more stuff, which piled up:

- const, whitespace, indentation, bracing, GB/SB, pointless casts
- use the trinary operator where appropriate
- data types (uint[] -> AcceptedCargo, ...)
- if cascade -> switch
- if (ptr) -> if (ptr != NULL)
- DeMorgan's Law
- Fix some comments
- 0 -> '\0', change magic numbers to symbolic constants

ai/trolly/pathfinder.c

@@ -506,9 +506,5 @@ static int32 AyStar_AiPathFinder_CalculateG(AyStar *aystar, AyStarNode *current,
 		}
 	}
 
-	// Res should never be below zero.. if so, make it zero!
-	if (res < 0) { res = 0; }
-
-	// Return our value
-	return res;
+	return (res < 0) ? 0 : res;
 }