add login class for databases/influxdb

Index: Makefile
===================================================================
RCS file: /cvs/ports/databases/influxdb/Makefile,v
retrieving revision 1.19
diff -u -r1.19 Makefile
--- Makefile 11 Mar 2022 18:31:19 -0000 1.19
+++ Makefile 20 Oct 2022 12:08:04 -0000
@@ -5,6 +5,7 @@
GH_ACCOUNT = influxdata
GH_PROJECT = influxdb
GH_TAGNAME = ${MODGO_VERSION}
+REVISION = 0

HOMEPAGE = https://influxdata.com

Index: pkg/PLIST
===================================================================
RCS file: /cvs/ports/databases/influxdb/pkg/PLIST,v
retrieving revision 1.5
diff -u -r1.5 PLIST
--- pkg/PLIST 11 Mar 2022 18:31:19 -0000 1.5
+++ pkg/PLIST 20 Oct 2022 12:08:04 -0000
@@ -16,6 +16,8 @@
@man man/man1/influxd-run.1
@man man/man1/influxd-version.1
@man man/man1/influxd.1
+share/examples/login.conf.d/influxdb
+@sample ${SYSCONFDIR}/login.conf.d/influxdb
share/examples/influxdb/
@sample ${SYSCONFDIR}/influxdb/
share/examples/influxdb/config.sample.toml
Index: pkg/influxdb.login
===================================================================
RCS file: pkg/influxdb.login
diff -N pkg/influxdb.login
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ pkg/influxdb.login 20 Oct 2022 12:08:04 -0000
@@ -0,0 +1,3 @@
+influxdb:\
+ :datasize=6G:\
+ :tc=daemon:
Hi,

on 7.2 influxdb blows with out of memory, after a while it seems it
stabilizes around 5G on my instance:
40431 _influx 10 0 5242M 409M idle thrslee 7:01 0.10% influxd

so better add a login class.. worth backporting to 7.2-stable ? or maybe
it only blows on my setup..

note that the port itself is in a dire need of an update, and a
victim^Wmaintainer.

Landry