RFR: 8283890: Changes in CFG file format break C1Visualizer

[Frederic Parain]

Please review this small fix reverting a change in the format of the CFG log file which prevent those files from being loaded by the C1Visualizer tool.

Thank you,

Fred

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Commit messages:
 - Fix CFG file format

Changes: https://git.openjdk.java.net/jdk/pull/8041/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8041&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8283890
  Stats: 4 lines in 1 file changed: 1 ins; 3 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8041.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8041/head:pull/8041

PR: https://git.openjdk.java.net/jdk/pull/8041