--- ../../2.1/scripts/driver	2018-04-13 09:24:59.491372477 -0700
+++ driver	2019-07-25 10:52:45.729379682 -0700
@@ -20,6 +20,7 @@
 # This better succeed.  If this fails, Python is royally screwed so we might
 # as well let the Web server give us a fatal and obtrusive error.
 import os
+import grp
 import sys
 
 # From here on we are as bulletproof as possible!
@@ -196,6 +197,8 @@
     except ImportError:
         os = None
 
+    # Write effective GROUP
+    print >> logfp, 'Process effective group =', grp.getgrgid(os.getegid())[0]
     # Write some information about our Python executable to the log file.
     print >> logfp, '[----- Python Information -----]'
     print >> logfp, 'sys.version     =', sys.version
@@ -207,6 +210,8 @@
 
     # Write the same information to the HTML sink.
     if not STEALTH_MODE:
+        print '<p>Process effective group =', grp.getgrgid(os.getegid())[0]
+        print '</p>'
         print '''\
 <p><hr><h4>Python information:</h4>