Don't have my Jepp manual handy but I did a google and found this on an aviation site, I was confused, I thought it did imply a mandatory turn, anyway here:
A procedure turn usually includes airspace up to 10 nautical miles from an identified fix. But at times there’s something (obstacles, airways or approaches to other airports, restricted or prohibited airspace) where controllers won’t give you that much room to maneuver. If the procedure requires you stay closer to the fix than 10 nm, it may instead depict a holding pattern in bold print. The bold print tells you that the hold must be flown (instead of a procedure turn or straight-in) if you’re called upon to fly the full-procedure approach.
One other note is that in the plan view, altitudes are considered minimum unless
Mandatory or
Maximum is indicated. As stated by
none, the procedure is considered
mandatory unless the symbol
No PT is indicated.