mw sync can take arg, otherwise sync all

bin/mw

@@ -289,7 +289,7 @@ purge() { confirm "delete all account data" || exit
 	sed -ibu "/\# mw-autogenerated/d" "$muttrc" ; rm -f "$muttrc"bu
 }
 
-syncwrapper() { mbsync -a &
+syncwrapper() { mbsync "${1:--a}" &
 	( kill -46 "$(pidof "${STATUSBAR:-dwmblocks}")" >/dev/null 2>&1 ) 2>/dev/null
 	wait
 	( kill -46 "$(pidof "${STATUSBAR:-dwmblocks}")" >/dev/null 2>&1 ) 2>/dev/null
@@ -322,7 +322,7 @@ case "$1" in
 	add) asktype && askinfo && tryconnect && finalize || delete ;;
 	pass) pick "change the password of" && getpass ;;
 	delete) pick delete && confirm "delete the \`$title\` profile" && delete ;;
-	sync) syncwrapper ;;
+	sync) syncwrapper $2 ;;
 	purge) purge ;;
 	*) cat << EOF
 mw: mutt-wizard, auto-configure email accounts for mutt