MDEV-9297 - mysql_install_db launches mysqld 3x

Perform database installation in one mysqld run. This makes mysql_install_db
3x faster.

scripts/mysql_install_db.sh

@@ -427,7 +427,7 @@ mysqld_install_cmd_line()
 
 # Create the system and help tables by passing them to "mysqld --bootstrap"
 s_echo "Installing MariaDB/MySQL system tables in '$ldata' ..."
-if { echo "use mysql;"; cat "$create_system_tables" "$create_system_tables2" "$fill_system_tables"; } | eval "$filter_cmd_line" | mysqld_install_cmd_line > /dev/null
+if { echo "use mysql;"; cat "$create_system_tables" "$create_system_tables2" "$fill_system_tables" "$fill_help_tables" "$maria_add_gis_sp"; } | eval "$filter_cmd_line" | mysqld_install_cmd_line > /dev/null
 then
   s_echo "OK"
 else
@@ -462,26 +462,6 @@ else
   exit 1
 fi
 
-s_echo "Filling help tables..."
-if { echo "use mysql;"; cat "$fill_help_tables"; } | mysqld_install_cmd_line > /dev/null
-then
-  s_echo "OK"
-else
-  echo
-  echo "WARNING: HELP FILES ARE NOT COMPLETELY INSTALLED!"
-  echo "The \"HELP\" command might not work properly."
-fi
-
-s_echo "Creating OpenGIS required SP-s..."
-if { echo "use test;"; cat "$maria_add_gis_sp"; } | mysqld_install_cmd_line > /dev/null
-then
-  s_echo "OK"
-else
-  echo
-  echo "WARNING: OPENGIS REQUIRED SP-S WERE NOT COMPLETELY INSTALLED!"
-  echo "GIS extentions might not work properly."
-fi
-
 
 # Don't output verbose information if running inside bootstrap or using
 # --srcdir for testing.  In such cases, there's no end user looking at