Remove trailing whitespace from all files (#497)

third_party/lua/test/coroutine.lua

@@ -467,7 +467,7 @@ else
   print "testing yields inside hooks"
 
   local turn
-  
+
   function fact (t, x)
     assert(turn == t)
     if x == 0 then return 1
@@ -591,7 +591,7 @@ else
 
 
   print "testing coroutine API"
-  
+
   -- reusing a thread
   assert(T.testC([[
     newthread      # create thread
@@ -870,7 +870,7 @@ do   -- a few more tests for comparison operators
     until res ~= 10
     return res
   end
-  
+
   local function test ()
     local a1 = setmetatable({x=1}, mt1)
     local a2 = setmetatable({x=2}, mt2)
@@ -882,7 +882,7 @@ do   -- a few more tests for comparison operators
     assert(2 >= a2)
     return true
   end
-  
+
   run(test)
 
 end
@@ -1042,11 +1042,11 @@ co = coroutine.wrap(function (...) return
           cannot be here!
        ]],
        [[  # 1st continuation
-         yieldk 0 3 
+         yieldk 0 3
          cannot be here!
        ]],
        [[  # 2nd continuation
-         yieldk 0 4 
+         yieldk 0 4
          cannot be here!
        ]],
        [[  # 3th continuation