Change float precision in json test util

ark120202 · ark120202 · commit 90cc57fe1edb · 2019-05-30T16:34:51.000+05:00
diff --git a/test/json.lua b/test/json.lua
@@ -116,7 +116,7 @@ local function encode_number(val)
   if val ~= val or val <= -math.huge or val >= math.huge then
     error("unexpected number value '" .. tostring(val) .. "'")
   end
-  return string.format("%.17g", val)
+  return string.format("%.16g", val)
 end
 
 
