Fixing some regex... but I still think something is wrong with it.

parsers/s01-parse/freeswitch.yaml

@@ -4,15 +4,12 @@ name: haileyxb/freeswitch
 description: "Parse Freeswitch logs"
 filter: evt.Parsed.program == 'freeswitch'
 pattern_syntax:
-  FS_TIMESTAMP: '202[1-2]-[0-1][0-9]-[0-1]\d \d\d:\d\d:\d\d.\d+'
+  FS_TIMESTAMP: '\d{4}-\d{2}-\d{2} \d\d:\d\d:\d\d.\d{6}'
   FS_EXTENSION: '\[[0-9a-zA-Z]+@[0-9a-zA-Z.]+\]'
 nodes:
   - grok:
       pattern: ^%{FS_TIMESTAMP:timestamp} \[WARNING\]sofia_reg.c:1739 SIP auth failure (REGISTER) on sofia profile 'internal' for %{FS_EXTENSION:fs_exten} from ip %{IP:source_ip}$
       apply_on: message
-  - grok:
-      pattern: ^%{FS_TIMESTAMP:timestamp} \[WARNING\]sofia_reg.c:2930 Can\'t find user %{FS_EXTENSION:fs_exten} from %{IP:source_ip}$
-      apply_on: message
 statics:
   - meta: log_type
     value: freeswitch_failed_auth