configuration.md had wrong env var for databases to include and exclude

Signed-off-by: Avi Deitcher <[email protected]>

Author: deitch

docs/configuration.md

@@ -68,8 +68,8 @@ The following are the environment variables, CLI flags and configuration file op
 | port to use to connect to database. Optional. | BR | `port` | `DB_PORT` | `database.port` | 3306 |
 | username for the database | BR | `user` | `DB_USER` | `database.credentials.username` |  |
 | password for the database | BR | `pass` | `DB_PASS` | `database.credentials.password` |  |
-| names of databases to dump, comma-separated | B | `include` | `DB_NAMES` | `dump.include` | all databases in the server |
-| names of databases to exclude from the dump | B | `exclude` | `DB_NAMES_EXCLUDE` | `dump.exclude` |  |
+| names of databases to dump, comma-separated | B | `include` | `DB_DUMP_INCLUDE` | `dump.include` | all databases in the server |
+| names of databases to exclude from the dump | B | `exclude` | `DB_DUMP_EXCLUDE` | `dump.exclude` |  |
 | do not include `USE <database>;` statement in the dump | B | `no-database-name` | `NO_DATABASE_NAME` | `dump.noDatabaseName` | `false` |
 | restore to a specific database | R | `restore --database` | `RESTORE_DATABASE` | `restore.database` |  |
 | how often to do a dump or prune, in minutes | BP | `dump --frequency` | `DB_DUMP_FREQUENCY` | `dump.schedule.frequency` | `1440` (in minutes), i.e. once per day |