Fix issue #314: Can't use #define in shader code.

src/scripts/graphics.lua

@@ -1294,7 +1294,7 @@ do
 		code = code:gsub("#include (%b'')", include)
 		code = code:gsub('#include (%b"")', include)
 
-		return table.concat{header, code, footer}
+		return table.concat{header, "\n", code, footer}
 	end
 
 	function love.graphics._transformGLSLErrorMessages(message)

src/scripts/graphics.lua.h

@@ -6297,8 +6297,8 @@ const unsigned char graphics_lua[] =
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