RFR: 8322278: Generational ZGC: Adjust the comment of ZHeuristics::use_per_cpu_shared_small_pages [v2]

[Guoxiong Li]

> Hi all,
> 
> This trivial patch fixes the method `ZHeuristics::use_per_cpu_shared_small_pages` to meet its comment.
> 
> Thanks for the review.
> 
> Best Regards,
> -- Guoxiong

Guoxiong Li has updated the pull request incrementally with one additional commit since the last revision:

  Only fix comment.

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/17138/files
  - new: https://git.openjdk.org/jdk/pull/17138/files/85486e9d..4106fbcc

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17138&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17138&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/17138.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17138/head:pull/17138

PR: https://git.openjdk.org/jdk/pull/17138