[jdk17u-dev] RFR: 8278163: --with-cacerts-src variable resolved after GenerateCacerts recipe setup

[Andrew Leonard]

This is the dependent PR fix for https://github.com/openjdk/jdk17u-dev/pull/164 to correctly resolve the --with-cacerts-src recipe.

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Depends on: https://git.openjdk.java.net/jdk17u-dev/pull/164

Commit messages:
 - Backport 45da3aea22fd85f214e661b2c98631cb91ddb55d

Changes: https://git.openjdk.java.net/jdk17u-dev/pull/168/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u-dev&pr=168&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8278163
  Stats: 5 lines in 1 file changed: 4 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk17u-dev/pull/168.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u-dev pull/168/head:pull/168

PR: https://git.openjdk.java.net/jdk17u-dev/pull/168