Mark it as to-be-closed instead of explicit close.

1 files changed, 1 insertions, 2 deletions

diff --git a/mkelf.lua b/mkelf.lua
index a811a57..6a90504 100644
--- a/mkelf.lua
+++ b/mkelf.lua
@@ -272,12 +272,11 @@ local function main()
         output = arg[i + 1]
         ::continue::
     end
-    local f = assert(io.open(output, "wb"))
+    local f <close> = assert(io.open(output, "wb"))
     header.phnum = #phdrs
     header.phentsize = (header.class == Class.bit64) and 0x38 or 0x20
     f:write(ElfHeader_pack(header))
     f:write(ElfPHeader_pack(phdrs, header.data, header.class))
-    f:close()
 end
 
 main()