patch eb8bab16f3d5ca071956c1b4eb0565befd57805a
Author: E. Bosch <presidev@AT@gmail.com>
Date:   Sat Feb  5 17:21:17 CET 2022
  * telegram: Replace spaces with underscores in downloaded file names
diff -rN -u old-irgramd/utils.py new-irgramd/utils.py
--- old-irgramd/utils.py	2025-09-13 15:59:25.768622835 +0200
+++ new-irgramd/utils.py	2025-09-13 15:59:25.772622829 +0200
@@ -44,4 +44,4 @@
     return messages_limited
 
 def sanitize_filename(fn):
-    return re.sub('[/{}<>()"\'\\|&]', '', fn).strip('-')
+    return re.sub('[/{}<>()"\'\\|&]', '', fn).strip('-').replace(' ','_')