Revert "Merge remote-tracking branch 'origin/mdb.RE/0.9' into OPENLDAP_REL_ENG_2_4"

This reverts commit b28afdf6, reversing
changes made to 11ca9b68.

libraries/liblmdb/CHANGES

 LMDB 0.9 Change Log
 
-LMDB 0.9.28 Engineering
-
 LMDB 0.9.27 Release (2020/10/26)
 	ITS#9376 fix repeated DUPSORT cursor deletes
 

libraries/liblmdb/COPYRIGHT

-Copyright 2011-2021 Howard Chu, Symas Corp.
+Copyright 2011-2020 Howard Chu, Symas Corp.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

libraries/liblmdb/intro.doc

 /*
- * Copyright 2015-2021 Howard Chu, Symas Corp.
+ * Copyright 2015-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/lmdb.h

@@ -135,7 +135,7 @@
  *
  *	@author	Howard Chu, Symas Corporation.
  *
- *	@copyright Copyright 2011-2021 Howard Chu, Symas Corp. All rights reserved.
+ *	@copyright Copyright 2011-2020 Howard Chu, Symas Corp. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted only as authorized by the OpenLDAP

libraries/liblmdb/mdb.c

@@ -5,7 +5,7 @@
  *	BerkeleyDB API, but much simplified.
  */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mdb_copy.1

 .TH MDB_COPY 1 "2014/07/01" "LMDB 0.9.14"
-.\" Copyright 2012-2021 Howard Chu, Symas Corp. All Rights Reserved.
+.\" Copyright 2012-2020 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
 .SH NAME
 mdb_copy \- LMDB environment copy tool

libraries/liblmdb/mdb_copy.c

 /* mdb_copy.c - memory-mapped database backup tool */
 /*
- * Copyright 2012-2021 Howard Chu, Symas Corp.
+ * Copyright 2012-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mdb_dump.1

 .TH MDB_DUMP 1 "2015/09/30" "LMDB 0.9.17"
-.\" Copyright 2014-2021 Howard Chu, Symas Corp. All Rights Reserved.
+.\" Copyright 2014-2020 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
 .SH NAME
 mdb_dump \- LMDB environment export tool

libraries/liblmdb/mdb_dump.c

 /* mdb_dump.c - memory-mapped database dump tool */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mdb_load.1

 .TH MDB_LOAD 1 "2015/09/30" "LMDB 0.9.17"
-.\" Copyright 2014-2021 Howard Chu, Symas Corp. All Rights Reserved.
+.\" Copyright 2014-2020 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
 .SH NAME
 mdb_load \- LMDB environment import tool

libraries/liblmdb/mdb_load.c

 /* mdb_load.c - memory-mapped database load tool */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mdb_stat.1

 .TH MDB_STAT 1 "2015/09/30" "LMDB 0.9.17"
-.\" Copyright 2012-2021 Howard Chu, Symas Corp. All Rights Reserved.
+.\" Copyright 2012-2020 Howard Chu, Symas Corp. All Rights Reserved.
 .\" Copying restrictions apply.  See COPYRIGHT/LICENSE.
 .SH NAME
 mdb_stat \- LMDB environment status tool

libraries/liblmdb/mdb_stat.c

 /* mdb_stat.c - memory-mapped database status tool */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/midl.c

@@ -3,8 +3,8 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2000-2021 The OpenLDAP Foundation.
- * Portions Copyright 2001-2021 Howard Chu, Symas Corp.
+ * Copyright 2000-2020 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/midl.h

@@ -11,8 +11,8 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2000-2021 The OpenLDAP Foundation.
- * Portions Copyright 2001-2021 Howard Chu, Symas Corp.
+ * Copyright 2000-2020 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mtest.c

 /* mtest.c - memory-mapped database tester/toy */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mtest2.c

 /* mtest2.c - memory-mapped database tester/toy */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mtest3.c

 /* mtest3.c - memory-mapped database tester/toy */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mtest4.c

 /* mtest4.c - memory-mapped database tester/toy */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without

libraries/liblmdb/mtest5.c

 /* mtest5.c - memory-mapped database tester/toy */
 /*
- * Copyright 2011-2021 Howard Chu, Symas Corp.
+ * Copyright 2011-2020 Howard Chu, Symas Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without