terraform 1.3.0 accepts a list of files

Fixes #97

flake.lock

@@ -22,11 +22,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1663669617,
-        "narHash": "sha256-yUrzkRDc6P3hsI5TdQ5+q8gnyjadNvaM3MMEsEVS8qk=",
+        "lastModified": 1663819708,
+        "narHash": "sha256-nKyJpwzGoV+5BNLHlrEMawsDxR1i6WOXqTcHWrWE8y4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "41ac0bd371618db6dd67fd952cc5b3d6a9955a15",
+        "rev": "f586d35a11ec07ced41d9d62c125c6ca0006141f",
         "type": "github"
       },
       "original": {

treefmt.toml

@@ -75,16 +75,8 @@ shfmt -i 2 -s -w "$@"
 includes = ["*.sh"]
 
 [formatter.terraform]
-# Terraform fmt only takes one file at the time so we create a wrapper.
-# See https://github.com/numtide/treefmt/issues/97
-command = "/bin/sh"
-options = [
-    "-euc",
-    """
-for f in "$@"; do
-  terraform fmt "$f"
-done
-    """,
-    "--", # bash swallows the second argument when using -c
-]
+# Careful, only terraform 1.3.0 or later accept a list of files.
+# see https://github.com/numtide/treefmt/issues/97
+command = "terraform"
+options = ["fmt"]
 includes = ["*.tf"]