input: tail: Fix docs for ignore_older (#1146)

* input: tail: Fix docs for ignore_older

Signed-off-by: lecaros <[email protected]>

* input: tail: fix symbol for ignore_older field name

Signed-off-by: lecaros <[email protected]>

---------

Signed-off-by: lecaros <[email protected]>

Author: lecaros

pipeline/inputs/tail.md

@@ -19,7 +19,7 @@ The plugin supports the following configuration parameters:
 | Read\_from\_Head | For new discovered files on start \(without a database offset/position\), read the content from the head of the file, not tail.                                                                                                                                                                                                                                                                                                                                                                          | False |
 | Refresh\_Interval | The interval of refreshing the list of watched files in seconds.                                                                                                                                                                                                                                                                                                                                                                                                                                         | 60 |
 | Rotate\_Wait | Specify the number of extra time in seconds to monitor a file once is rotated in case some pending data is flushed.                                                                                                                                                                                                                                                                                                                                                                                      | 5 |
-| Ignore\_Older | Ignores files which modification date is older than this time in seconds. Supports m,h,d \(minutes, hours, days\) syntax.                                                                                                                                                                                                                                  |  |
+| Ignore\_Older | Ignores records older than `ignore_older`. Supports m, h, d (minutes, hours, days) syntax. Default behavior is to read all records. Option only available when a Parser is specified and it can parse the time of a record.                                                                                                                                                                                                                                                                               |  |
 | Skip\_Long\_Lines | When a monitored file reaches its buffer capacity due to a very long line \(Buffer\_Max\_Size\), the default behavior is to stop monitoring that file. Skip\_Long\_Lines alter that behavior and instruct Fluent Bit to skip long lines and continue processing other lines that fits into the buffer size.                                                                                                                                                                                              | Off |
 | Skip\_Empty\_Lines | Skips empty lines in the log file from any further processing or output.                                                                                                                                                                                                                                                                                                                                                                                                                                 | Off |
 | DB | Specify the database file to keep track of monitored files and offsets.                                                                                                                                                                                                                                                                                                                                                                                                                                  |  |
@@ -35,6 +35,7 @@ The plugin supports the following configuration parameters:
 | Tag\_Regex | Set a regex to extract fields from the file name. E.g. `(?<pod_name>[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*)_(?<namespace_name>[^_]+)_(?<container_name>.+)-`                                                                                                                                                                                                                                                                                                                    |  |
 | Static\_Batch\_Size | Set the maximum number of bytes to process per iteration for the monitored static files (files that already exists upon Fluent Bit start).                                                                                                                                                                                                                                                                                                                                                               | 50M     |
 
+
 Note that if the database parameter `DB` is **not** specified, by default the plugin will start reading each target file from the beginning. This also might cause some unwanted behavior, for example when a line is bigger that `Buffer_Chunk_Size` and `Skip_Long_Lines` is not turned on, the file will be read from the beginning of each `Refresh_Interval` until the file is rotated.
 
 ## Multiline Support