Merge branch '5-gen-sh-release-fehler' into 'master'

Resolve "gen.sh release Fehler"

Closes #5

See merge request Datenschleuder/ds-rss!4

gen.sh

@@ -188,7 +188,7 @@ newdataentry () {
 			test "$d" = "covers" && {
 				printf "\t<image>"${cover}"</image>\n"
 			} || {
-				fs=$(stat -c %s ${customdir}"/"${ffn})
+				fs=$(wc -c <${customdir}"/"${ffn})
 				printf "\t<link filesize=\"%d\">%s</link>\n" "${fs}" "${ffn}"
 			}
 		} || {