tweaks

csst_common/io.py

@@ -327,7 +327,7 @@ def delete_section(
 
 
 def get_proc_info(**kwargs):
-    cards = [("BUILD", os.getenv("BUILD", default="-"), "")]
+    cards = [("BUILD", os.getenv("BUILD", default="__unset__"), "")]
     for k, v in kwargs.items():
         cards.append((k, v, ""))
     header = fits.Header(cards=cards)

tests/test_fits_header_ops.py

@@ -129,7 +129,7 @@ class TestFitsHeaderOps(unittest.TestCase):
 
     def test_get_proc_info(self):
         proc_info = get_proc_info()
-        self.assertEquals(proc_info["BUILD"], "-")
+        self.assertEquals(proc_info["BUILD"], "__unset__")
 
     def test_generate_meta(self):
         h = generate_meta()