avoid an error about the fact that the repo already exists (I assume that getting the config of a repo is fast, but maybe not?)

conf/backup_method

@@ -29,7 +29,8 @@ do_backup() {
     size="$3"
     description="$4"
     set +e
-    if "$borg" init -e repokey "$repo" ; then
+    if ! "$borg" config -l > /dev/null 2>&1; then
+        "$borg" init -e repokey
         # human_size=`echo $size | awk '{ suffix=" KMGT"; for(i=1; $1>1024 && i < length(suffix); i++) $1/=1024; print int($1) substr(suffix, i, 1), $3; }'`
         # Speed in Kbps
         # speed=1000