simple make batch script executable

larch/xrd/struct2xas.py

@@ -7,7 +7,6 @@
 
 # main imports
 import os
-import stat
 import json
 import time
 from dataclasses import dataclass
@@ -1019,13 +1018,7 @@ def make_sbatch(self, template: str, **kwargs):
         with open(batch_script, "w") as fp, open(template) as tp:
             fp.write(tp.read().format(**kwargs))
             logger.info(f"written {fp.name}")
-
-        # Make the SLURM batch script executable.
-        current_permissions = os.stat(batch_script)
-        os.chmod(
-            batch_script,
-            current_permissions.st_mode | stat.S_IEXEC | stat.S_IXGRP | stat.S_IXOTH,
-        )
+        os.chmod(batch_script, 0o755)
 
     def make_input_feff(
         self,