Update audit-log-filter-variables.md (#619)

Updated the default value for rotate_on_size

Author: patrickbirch

docs/audit-log-filter-variables.md

@@ -629,9 +629,9 @@ The size of the buffer for reading from the audit log filter file. The `audit_lo
 | Dynamic | Yes  |
 | Scope | Global  |
 | Data type | Integer |
-| Default | 1GB  |
+| Default | 1073741824  |
 
-Performs an automatic log file rotation based on the size. The default value is 1GB. If the value is greater than 0, when the log file size exceeds the value, the component renames the current file and opens a new log file using the original name.
+Performs an automatic log file rotation based on the size. The default value is 1073741824. If the value is greater than 0, when the log file size exceeds the value, the component renames the current file and opens a new log file using the original name.
 
 If you set the value to less than 4096, the component does not automatically rotate the log files. You can rotate the log files manually using [`audit_log_rotate()`](#audit_log_rotate). If the value is not a multiple of 4096, the component truncates the value to the nearest multiple.