整理代码，return后面跟空格

parts/modes/dig_eff_40l.lua

@@ -1,10 +1,10 @@
-return{
+return {
     env={
         pushSpeed=6,
         eventSet='dig_40l',
         bg='bg1',bgm='way',
     },
-    score=function(P) return{P.stat.piece,P.stat.time} end,
+    score=function(P) return {P.stat.piece,P.stat.time} end,
     scoreDisp=function(D) return D[1].." Pieces   "..STRING.time(D[2]) end,
     comp=function(a,b) return a[1]<b[1] or a[1]==b[1] and a[2]<b[2] end,
     getRank=function(P)