RFR: JDK-8284758: [linux] improve print_container_info [v2]

[Matthias Baesken]

> Currently on Linux, os::Linux::print_container_info might print rather badly unreadable memory infos like :
> 
> memory_usage_in_bytes: 18029760512
> memory_max_usage_in_bytes: 423686144
> 
> This could be improved , at a lot of places in the hs_err file output we already print the larger memory-related infos in k , for example rlimit information
> or /proc/meminfo.

Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:

  adjust print_container_helper

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/8217/files
  - new: https://git.openjdk.java.net/jdk/pull/8217/files/ebd57acc..68f8be94

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8217&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8217&range=00-01

  Stats: 7 lines in 1 file changed: 0 ins; 0 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8217.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8217/head:pull/8217

PR: https://git.openjdk.java.net/jdk/pull/8217