RFR: 8265326: Strange Characters in G1GC GC Log [v2]

[Fairoz Matte]

> There was an character formating issue on mac-os due to usage of "
> `FormatBuffer<128>`" 
> Used explicit variable to hold the FormatBuffer

Fairoz Matte has updated the pull request incrementally with one additional commit since the last revision:

  Update g1ConcurrentMarkThread.cpp

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3589/files
  - new: https://git.openjdk.java.net/jdk/pull/3589/files/e82c9087..630a944b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3589&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3589&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3589.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3589/head:pull/3589

PR: https://git.openjdk.java.net/jdk/pull/3589