[Pkg-postgresql-public] Bug#841753: postgresql-9.6: Deprecation warnings on install

[Paul Norman]

Package: postgresql-9.6
Version: 9.6.0-1
Severity: minor

Dear Maintainer,

When installing PostgreSQL the following text is produced

Setting up postgresql-9.6 (9.6.0-1) ...
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line 78.

The last line is repeated for a total of 15 warnings.

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.7.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages postgresql-9.6 depends on:
ii  libc6                  2.24-3
ii  libgssapi-krb5-2       1.14.3+dfsg-2
ii  libldap-2.4-2          2.4.42+dfsg-2+b3
ii  libpam0g               1.1.8-3.3
ii  libpq5                 9.6.0-1
ii  libssl1.0.2            1.0.2j-1
ii  libsystemd0            231-9
ii  libxml2                2.9.4+dfsg1-2
ii  locales                2.24-3
ii  postgresql-client-9.6  9.6.0-1
ii  postgresql-common      177
ii  ssl-cert               1.0.38
ii  tzdata                 2016g-1

Versions of packages postgresql-9.6 recommends:
ii  postgresql-contrib-9.6  9.6.0-1
ii  sysstat                 11.4.1-1

Versions of packages postgresql-9.6 suggests:
pn  locales-all  <none>

-- no debconf information