fix for 47561:Incorrect group bit used for new group.

patch by dave@intrec.com

webtools/bugzilla/editgroups.cgi

@@ -274,7 +274,7 @@ if ($action eq 'new') {
                    '18014398509481984','36028797018963968','72057594037927936',
                    '144115188075855872','288230376151711744',
                    '576460752303423488','1152921504606846976',
-                   '2305843009213693958','4611686018427387916');
+                   '2305843009213693952','4611686018427387904');
 
     # First the next available bit
     my $bit = "";