update letsencrypt renewal script: keep the file signed.crt
update letsencrypt renewal script: keep the file signed.crt

Debian/debsources,Debian/debsources,oorestisime/debsources,devoxel/debsources,Debian/debsources,oorestisime/debsources,Debian/debsources,matthieucan/debsources,matthieucan/debsources,matthieucan/debsources,Debian/debsources,matthieucan/debsources,oorestisime/debsources,oorestisime/debsources,devoxel/debsources,devoxel/debsources,matthieucan/debsources,devoxel/debsources,devoxel/debsources,oorestisime/debsources