From edb70b48695de9483a58d449e648f829818de197 Mon Sep 17 00:00:00 2001
From: jdhughes-usgs <jdhughes@usgs.gov>
Date: Wed, 28 Jun 2023 14:33:20 -0500
Subject: [PATCH] fix(binary): revert a few changes in PR #1839 (#1846)

---
 autotest/test_mf6.py           | 1 +
 flopy/mf6/data/mffileaccess.py | 2 +-
 flopy/utils/datafile.py        | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/autotest/test_mf6.py b/autotest/test_mf6.py
index 042df355c..eeb2efb4e 100644
--- a/autotest/test_mf6.py
+++ b/autotest/test_mf6.py
@@ -588,6 +588,7 @@ def test_binary_write(function_tmpdir):
 
 
 @requires_exe("mf6")
+@pytest.mark.skip(reason='todo:: after flopy binary fix.')
 def test_vor_binary_write(function_tmpdir):
 
     # build voronoi grid
diff --git a/flopy/mf6/data/mffileaccess.py b/flopy/mf6/data/mffileaccess.py
index ce34a06f0..5a2238aca 100644
--- a/flopy/mf6/data/mffileaccess.py
+++ b/flopy/mf6/data/mffileaccess.py
@@ -294,8 +294,8 @@ def _get_header(
                     precision=precision,
                     text=text,
                     ncpl=modelgrid.ncpl,
-                    m2=1,
                     ilay=ilay,
+                    m3=1,
                     pertim=pertim,
                     totim=totim,
                     kstp=1,
diff --git a/flopy/utils/datafile.py b/flopy/utils/datafile.py
index fb5906ae2..73a7f61b6 100644
--- a/flopy/utils/datafile.py
+++ b/flopy/utils/datafile.py
@@ -95,8 +95,8 @@ def __init__(self, filetype=None, precision="single"):
                         ("totim", floattype),
                         ("text", "a16"),
                         ("ncpl", "i4"),
-                        ("m2", "i4"),
                         ("ilay", "i4"),
+                        ("m3", "i4"),
                     ]
                 )
             elif self.header_type == "vardisu":