Simplify verbiage and shorten the length.

rc_shared.sh

@@ -546,8 +546,9 @@ eval "$(declare -F | grep -v _ | sed 's/-f /-fx /')"
 ( if [[ -d "$project" ]]; then
 	git -C "$project" fetch >/dev/null 2>&1 && git -C "$project" status | grep "is behind" \
 	| while read status; do
-		log "\n\n`date` - Updates to env-shared are available via 'update-shared'."
+		log "\n\n`date` - env-shared has been improved."
 		log "   '$status'"
+		log "\n\n`date` - Run 'update-shared' to update."
 	done
 fi & )