package/rsyslog: fix hash file
Commit [1] introduced an extra empty line in the hash file
which makes check-package to report the error:
package/rsyslog/rsyslog.hash:4: consecutive empty lines
This commit fixes that.
[1] https://gitlab.com/buildroot.org/buildroot/-/commit/b39d3d8f62182d734c368e9197e1089792f2f958
Signed-off-by: Julien Olivain <ju.o@free.fr>