cli: dataref export: sort by env names rather than values. oops.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/cli.py b/lib/cli.py
index ff58099..8d10347 100644
--- a/lib/cli.py
+++ b/lib/cli.py
@@ -336,7 +336,7 @@ def model_quality_table(
 
 def export_dataref(dref_file, dref, precision=None):
     with open(dref_file, "w") as f:
-        for k, v in sorted(os.environ.items(), key=lambda kv: kv[1]):
+        for k, v in sorted(os.environ.items(), key=lambda kv: kv[0]):
             if k.startswith("DFATOOL_"):
                 print(f"% {k}='{v}'", file=f)
         for arg in sys.argv: