fix readme

README.md

@@ -365,6 +365,8 @@ Default is:
 
 #### `$backup_scripts`
 Additional scripts to create, possible values are: mysql, psql, misc
+NOTE: this requires you to install the client packages you wish to use.
+      You can do this by passing an array to [$rsnapshot::package_name](#package_name)
 
 Default is:
 

templates/mysql.sh.erb

@@ -11,6 +11,6 @@ dbs=( $(mysql -h "$host" -u "$user" -p"$pass" -e 'show databases' | sed '1d;/inf
 for db in "${dbs[@]}"; do
   mysqldump --host="$host" --user="$user" --password="$pass" --single-transaction --quick --routines --ignore-table=mysql.event "$db" > "$db".sql
   wait
-  pbzip2 -p3 "$db".sql
+  pbzip2 "$db".sql
 done
 

templates/psql.sh.erb

@@ -12,6 +12,6 @@ dbs=( $(psql -h "$host" -U "$user" -Atc "SELECT datname FROM pg_database WHERE N
 for db in "${dbs[@]}"; do
   ssh -l root "$host" "pg_dump -U ${user} -Fc ${db}" > "$db".sql
   wait
-  pbzip2 -p3 "$db".sql
+  pbzip2 "$db".sql
 done