Fixed small typo

mount_fileshare.sh

@@ -80,7 +80,7 @@ while getopts ":s:f:m:pc:u:g:h" opt; do
 done
 shift $((OPTIND -1))
 
-if [[ ${PERSIST} == 1]]; then
+if [[ ${PERSIST} == 1 ]]; then
     echo "Option -p is still not implemented, sorry."
 fi