Remove unused 's' option from getopts

This option is not handled by the next `case` command.

atom.sh

@@ -11,7 +11,7 @@ else
   exit 1
 fi
 
-while getopts ":wtfvhs-:" opt; do
+while getopts ":wtfvh-:" opt; do
   case "$opt" in
     -)
       case "${OPTARG}" in