RFR 8221096: Description of -XX:+PrintFlagsRanges is incorrect

[Lois Foltan]

Looks good and trivial.
Lois

On 3/21/2019 10:40 AM, Harold Seigel wrote:
> Hi,
>
> Please review this trivial change to fix JDK-8221096.
>
> Open Webrev: 
> http://cr.openjdk.java.net/~hseigel/bug_8221096/webrev/index.html
>
> JBS Bug:  https://bugs.openjdk.java.net/browse/JDK-8221096
>
> The fix was regression tested by running Mach5 tiers 1 and 2 tests and 
> builds on Linux-x64, Solaris, Windows, and Mac OS X and by running 
> tier 3 tests on Linux-x64.
>
> Thanks, Harold
>