Public bug reported:
I have started seeing this error in my logwatch reports.
```
--------------------- Amavisd-new Begin ------------------------
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/^(CLEAN|SPAM(?:MY)?|INFECTED \(.*?\)|BANNED
\(.*?\)|BAD-HEADER(?:-\d)?|UNCHECKED|MTA-BLOCKED|OVERSIZED|OTHER|TEMPFAIL)(?: {
<-- HERE [^}]+})?, ([^[]+ )?(?:([^<]+) )?[<(](.*?)[>)] -> ([(<].*?[)>]),
(?:.*Hits: ([-+.\d]+))(?:.* size: (\d+))?(?:.* autolearn=(\w+))?/ at
/usr/share/logwatch/scripts/services/amavis line 2286.
---------------------- Amavisd-new End -------------------------
```
```
--------------------- Postfix Begin ------------------------
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/^Config: { <-- HERE / at
/usr/share/logwatch/scripts/services/postfix line 1850.
---------------------- Postfix End -------------------------
```
```
--------------------- Connections (secure-log) Begin ------------------------
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/krb5kdc\[[0-9]*\]: (AS_REQ|TGS_REQ) \([0-9]+ etypes { <-- HERE
[ 0-9]+}\) ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+): (ISSUE|UNKNOWN_SERVER): authtime
[0-9]+, (?:etypes {rep=[0-9]+ tkt=[0-9]+ ses=[0-9]+},)? ([^ ]+) for ([^
,]+)(?:, )?(.*)$/ at /usr/share/logwatch/scripts/services/secure line 509.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/krb5kdc\[[0-9]*\]: (AS_REQ|TGS_REQ) \([0-9]+ etypes {[
0-9]+}\) ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+): (ISSUE|UNKNOWN_SERVER): authtime
[0-9]+, (?:etypes { <-- HERE rep=[0-9]+ tkt=[0-9]+ ses=[0-9]+},)? ([^ ]+) for
([^ ,]+)(?:, )?(.*)$/ at /usr/share/logwatch/scripts/services/secure line 509.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/krb5kdc\[[0-9]*\]: (AS_REQ|TGS_REQ) \([0-9]+ etypes { <-- HERE
[ 0-9]+}\) ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+):
(NEEDED_PREAUTH|PREAUTH_FAILED|CLIENT_NOT_FOUND): ([^ ]+) for ([^ ,]+)(?:,
)?(.*)$/ at /usr/share/logwatch/scripts/services/secure line 518.
**Unmatched Entries**
```
and after that everything was normal again.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: logwatch 7.4.1-2ubuntu2
ProcVersionSignature: Ubuntu 4.3.0-5.16-generic 4.3.3
Uname: Linux 4.3.0-5-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.19.3-0ubuntu2
Architecture: amd64
CurrentDesktop: MATE
Date: Fri Jan 8 18:03:24 2016
InstallationDate: Installed on 2015-12-12 (27 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Alpha amd64 (20151212)
PackageArchitecture: all
SourcePackage: logwatch
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: logwatch (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1532252
Title:
Unescaped left brace in regex is deprecated
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