fixed bug #460835, "Too many connections in cvsdbadmin update"

* lib/cvsdb.py (ConnectDatabase): now returns an existing database
  connection instead of always creating a new one.


git-svn-id: http://viewvc.tigris.org/svn/viewvc/trunk@685 8cb11bc2-c004-0410-86c3-e597b4017df7

lib/cvsdb.py

@@ -671,7 +671,10 @@ def ConnectDatabaseReadOnly():
 
 def ConnectDatabase():
     global gCheckinDatabase
-    
+
+    if gCheckinDatabase:
+        return gCheckinDatabase
+
     gCheckinDatabase = CreateCheckinDatabase(
         cfg.cvsdb.host,
         cfg.cvsdb.user,