BUG #14128: PGDG package has a typo

The following bug has been logged on the website:

Bug reference:      14128
Logged by:          VINCENZO ROMANO
Email address:      vincenzo.romano@notorand.it
PostgreSQL version: 9.5.2
Operating system:   Linux, Ubuntu 16.04, 64bit
Description:

Setting up postgresql-9.5 (9.5.2-1.pgdg16.04+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.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Unescaped left brace in regex is deprecated, passed through in regex; marked
by <-- HERE in m/(?<!\\)\${ <-- HERE ([^}]+)}/ at /usr/sbin/pam_getenv line
78.
Creating new cluster 9.5/main ...