getty: remove --issue-file parameter

agetty from util-linux is meanwhile following the configuration file
specification for /etc/issue. The usage of "--issue-file" breaks this
on distributions with current util-linux.

README

@@ -259,7 +259,7 @@ REQUIREMENTS:
         During runtime, you need the following additional
         dependencies:
 
-        util-linux >= v2.27.1 required (including but not limited to: mount,
+        util-linux >= v2.41 required (including but not limited to: mount,
                                       umount, swapon, swapoff, sulogin,
                                       agetty, fsck)
         dbus >= 1.4.0 (strictly speaking optional, but recommended)

TODO

@@ -116,10 +116,6 @@ Deprecations and removals:
 
 * Consider removing root=gpt-auto, and push people to use root=dissect instead.
 
-* Once
-  https://github.com/util-linux/util-linux/commit/508fb0e7ac103b68531a59db2a4473897853ab52
-  has hit the prominent distributions, revert --issue-file= hack in units/*getty*service.in
-
 Features:
 
 * Maybe introducean InodeRef structure inspired by PidRef, which references a

units/console-getty.service.in

@@ -17,7 +17,7 @@ Before=getty.target
 ConditionPathExists=/dev/console
 
 [Service]
-ExecStart=-{{AGETTY}} --noreset --noclear --issue-file=/etc/issue:/etc/issue.d:/run/issue.d:/usr/lib/issue.d --keep-baud 115200,57600,38400,9600 - ${TERM}
+ExecStart=-{{AGETTY}} --noreset --noclear --keep-baud 115200,57600,38400,9600 - ${TERM}
 Type=idle
 Restart=always
 UtmpIdentifier=cons

units/container-getty@.service.in

@@ -22,7 +22,7 @@ Conflicts=rescue.service
 Before=rescue.service
 
 [Service]
-ExecStart=-{{AGETTY}} --noreset --noclear --issue-file=/etc/issue:/etc/issue.d:/run/issue.d:/usr/lib/issue.d - ${TERM}
+ExecStart=-{{AGETTY}} --noreset --noclear - ${TERM}
 Type=idle
 Restart=always
 RestartSec=0

units/getty@.service.in

@@ -31,7 +31,7 @@ Before=rescue.service
 ConditionPathExists=/dev/tty0
 
 [Service]
-ExecStart=-{{AGETTY}} --noreset --noclear --issue-file=/etc/issue:/etc/issue.d:/run/issue.d:/usr/lib/issue.d - ${TERM}
+ExecStart=-{{AGETTY}} --noreset --noclear - ${TERM}
 Type=idle
 Restart=always
 RestartSec=0

units/serial-getty@.service.in

@@ -27,7 +27,7 @@ Conflicts=rescue.service
 Before=rescue.service
 
 [Service]
-ExecStart=-{{AGETTY}} --noreset --noclear --issue-file=/etc/issue:/etc/issue.d:/run/issue.d:/usr/lib/issue.d --keep-baud 115200,57600,38400,9600 - ${TERM}
+ExecStart=-{{AGETTY}} --noreset --noclear --keep-baud 115200,57600,38400,9600 - ${TERM}
 Type=idle
 Restart=always
 UtmpIdentifier=%I