Examples in help text for JFR.start uses "," as separator instead of " ".

"$ jcmd <pid> JFR.start maxage=1h,maxsize=1000M
 $ jcmd <pid> JFR.start settings=profile
 $ jcmd <pid> JFR.start delay=5m,settings=my.jfc"

should be:

"$ jcmd <pid> JFR.start maxage=1h maxsize=1000M
 $ jcmd <pid> JFR.start settings=profile
 $ jcmd <pid> JFR.start delay=5m settings=my.jfc"

Examples in other JFR commands seem correct.