Fix usual dolibarr migration issue

upgradeDolibarr.sh

@@ -111,3 +111,6 @@ cat patch
 git status
 cd $OLDDIR
 read -p "Hit enter when you are done with the manual upgrade step"
+echo "En cas d'erreur de type The maximum column sze is 767 bytes, please adapt the following query:"
+echo "ALTER TABLE llx_my_table ROW_FORMAT=DYNAMIC ;"
+echo "After running it, restart the manual upgrade"