add-opens/add-exports require '=' in JAVA_TOOL_OPTIONS

A DESCRIPTION OF THE PROBLEM :
This is the same report as JDK-8288729. The reviewer incorrectly assumed '--add-exports=...' and '--add-exports ...' are the same, but they're not handled the same in JAVA_TOOL_OPTIONS. When passed to JAVA_TOOL_OPTIONS, it must be '--add-exports=' or '--add-opens=', where-as on the command-line the '=' is optional.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
$ JAVA_TOOL_OPTIONS="--add-exports java.base/sun.security.provider=bctls" /usr/lib/jvm/java-11-openjdk-arm64/bin/java -version
Picked up JAVA_TOOL_OPTIONS: --add-exports java.base/sun.security.provider=bctls
Unrecognized option: --add-exports
...
$ JAVA_TOOL_OPTIONS="--add-exports=java.base/sun.security.provider=bctls" /usr/lib/jvm/java-11-openjdk-arm64/bin/java -version
Picked up JAVA_TOOL_OPTIONS: --add-exports=java.base/sun.security.provider=bctls
WARNING: Unknown module: bctls specified to --add-exports
openjdk version "11.0.20.1" 2023-08-24
...

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
$ JAVA_TOOL_OPTIONS="--add-exports java.base/sun.security.provider=bctls" /usr/lib/jvm/java-11-openjdk-arm64/bin/java -version
Picked up JAVA_TOOL_OPTIONS: --add-exports=java.base/sun.security.provider=bctls
WARNING: Unknown module: bctls specified to --add-exports
openjdk version "11.0.20.1" 2023-08-24
...