RFR: JDK-8312466: /bin/nm usage in AIX makes needs -X64 flag [v2]

[Andreas Steiner]

> On AIX the 'nm' needs -X64 option.

Andreas Steiner has updated the pull request incrementally with one additional commit since the last revision:

  correction of comment

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/15036/files
  - new: https://git.openjdk.org/jdk/pull/15036/files/760170de..ac233296

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15036&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15036&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/15036.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15036/head:pull/15036

PR: https://git.openjdk.org/jdk/pull/15036