Merge branch 'lintian-fix-various' into 'master'

Lintian fix various

See merge request mariadb-team/mariadb-10.3!7

debian/mariadb-server-10.3.lintian-overrides

 # ash's buildin has no "-e" so use /bin/echo
-mariadb-server-10.3: command-with-path-in-maintainer-script postinst:140 /bin/echo
+mariadb-server-10.3: command-with-path-in-maintainer-script postinst:143 /bin/echo
 # OK, path /usr/sbin/invoke-rc.d is only used in check, executes are run without the path
 # False positive: unfortified calls have already been fully validated at compile-time
 # See full research at https://jira.mariadb.org/browse/MDEV-8377

debian/mariadb-test.lintian-overrides

 # OK, this file is part of test suite and only used for a test
 mariadb-test: arch-dependent-file-in-usr-share usr/share/mysql/mysql-test/lib/My/SafeProcess/my_safe_process
-mariadb-test: executable-not-elf-or-script usr/share/mysql/mysql-test/lib/generate-ssl-certs.sh