RFR: JDK-8304684: Memory leak in DirectivesParser::set_option_flag [v2]

[Justin King]

> Add missing `FREE_C_HEAP_ARRAY` call.

Justin King has updated the pull request incrementally with one additional commit since the last revision:

  Update based on review
  
  Signed-off-by: Justin King <jcking at google.com>

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/13125/files
  - new: https://git.openjdk.org/jdk/pull/13125/files/e5a92853..a832d587

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13125&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13125&range=00-01

  Stats: 19 lines in 1 file changed: 9 ins; 5 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/13125.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13125/head:pull/13125

PR: https://git.openjdk.org/jdk/pull/13125