MDEV-36738: mariadb@.service incorrectly changing pam ownership in mariadb-install-db

It was mysql_install_db, and this is changed to mariadb-install-db.
likewise changed all of the support-files references to
mysql_install_db.

This install script is part of the service as a useful instigation
step, and a no-op in subseqeuent runs.

This script does however change the auth_pam_tool_dir ownership.
When running a multi-instance based on username, changing the
auth_pam_tool_dir will only cause troubles for the other users.

If you are running multiple instances on username is seems you
are unlikely do be having pam access for all users. Even
if you where the solution on auth_pam_tool_dir would be a group
permission and group access based on the users.

As such skip the changing of ownership.

support-files/MacOSX/ReadMe.txt

@@ -80,7 +80,7 @@ Note
    lib             Libraries
    man             Unix manual pages
    mysql-test      MySQL test suite
-   scripts         Contains the mysql_install_db script
+   scripts         Contains the mariadb-install-db script
    share/mysql     Error message files
    sql-bench       Benchmarks
    support-files   Scripts and sample configuration files
@@ -288,7 +288,7 @@ Note
    /usr/libexec                The mariadbd server
    /usr/share/man              Unix manual pages
    /usr/share/mysql/mysql-test MySQL test suite
-   /usr/share/mysql            Contains the mysql_install_db script
+   /usr/share/mysql            Contains the mariadb-install-db script
    /var/mysql/mysql.sock       The location of the MySQL Unix socket
 
 Note

support-files/MacOSX/postflight.sh

@@ -23,13 +23,13 @@
 # installation has been performed.
 #
 # This script will install the MySQL privilege tables using the
-# "mysql_install_db" script and will correct the ownerships of these files
+# "mariadb-install-db" script and will correct the ownerships of these files
 # afterwards.
 #
 
 if cd @prefix@ ; then
 	if [ ! -f data/mysql/db.frm ] ; then
-		./scripts/mysql_install_db --rpm
+		./scripts/mariadb-install-db --rpm
 	fi
 
 	if [ -d data ] ; then

support-files/binary-configure.sh

@@ -23,9 +23,9 @@ for arg do
   esac
 done
 
-if test ! -x  ./scripts/mysql_install_db
+if test ! -x  ./scripts/mariadb-install-db
 then
-  echo "I didn't find the script './scripts/mysql_install_db'."
+  echo "I didn't find the script './scripts/mariadb-install-db'."
   echo "Please execute this script in the mysql distribution directory!"
   exit 1;
 fi
@@ -38,7 +38,7 @@ echo "and start the MySQL server for you.  If you run into any trouble, please"
 echo "consult the MySQL manual, that you can find in the Docs directory."
 echo ""
 
-./scripts/mysql_install_db --no-defaults
+./scripts/mariadb-install-db --no-defaults
 if [ $? = 0 ]
 then
   echo "Starting the mariadbd server.  You can test that it is up and running"

support-files/mariadb.service.in

@@ -82,7 +82,7 @@ ExecStartPre=/bin/sh -c "[ ! -e @bindir@/galera_recovery ] && VAR= || \
  && systemctl set-environment _WSREP_START_POSITION=$VAR || exit 1"
 
 # Needed to create system tables etc.
-# ExecStartPre=@scriptdir@/mysql_install_db -u mysql
+# ExecStartPre=@scriptdir@/mariadb-install-db -u mysql
 
 # Start main service
 # MYSQLD_OPTS here is for users to set in /etc/systemd/system/mariadb.service.d/MY_SPECIAL.conf

support-files/mariadb@.service.in

@@ -88,7 +88,7 @@
 #   User=%I
 #   ProtectHome=false
 #   ExecStartPre=
-#   ExecStartPre=@scriptdir@/mysql_install_db $MYSQLD_MULTI_INSTANCE \
+#   ExecStartPre=@scriptdir@/mariadb-install-db $MYSQLD_MULTI_INSTANCE \
 #       --auth-root-authentication-method=socket --auth-root-socket-user=%I
 #   Environment=MYSQLD_MULTI_INSTANCE="--defaults-file=/home/%I/my%I.cnf \
 #       --datadir=/home/%I/mysqldatadir --skip-networking --socket=@mysql-%I"
@@ -197,8 +197,8 @@ ProtectSystem=full
 # Prevent accessing /home, /root and /run/user
 ProtectHome=true
 
-# Needed to create system tables etc.
-ExecStartPre=@scriptdir@/mysql_install_db $MYSQLD_MULTI_INSTANCE
+# Needed to create system tables etc. --rpm to not do pam permission changes.
+ExecStartPre=@scriptdir@/mariadb-install-db $MYSQLD_MULTI_INSTANCE --rpm
 
 # Start main service
 # A few variables are here: