git: openjdk/jdk11u-dev: 8287007: [cgroups] Consistently use stringStream throughout parsing code

[Lutz Schmidt]

Changeset: 5401f124
Author:    Lutz Schmidt <lucy at openjdk.org>
Date:      2023-05-26 14:51:18 +0000
URL:       https://git.openjdk.org/jdk11u-dev/commit/5401f1248d2958f5cc670769a3f04ae864688603

8287007: [cgroups] Consistently use stringStream throughout parsing code

Backport-of: e0baf012b111e422ddf39a577b1b4af2599fd00d

! src/hotspot/os/linux/cgroupV1Subsystem_linux.cpp
! src/hotspot/os/linux/cgroupV2Subsystem_linux.cpp
+ test/hotspot/gtest/runtime/test_os_linux_cgroups.cpp
+ test/jdk/jdk/internal/platform/cgroup/CgroupV1SubsystemControllerTest.java
+ test/jdk/jdk/internal/platform/cgroup/CgroupV2SubsystemControllerTest.java