RFR: 6946: There should be an option to build the agent in the build script [v10]

[Miroslav Wengner]

On Wed, 6 Jan 2021 19:10:32 GMT, Alex Macdonald <aptmac at openjdk.org> wrote:

>> Miroslav Wengner has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - 6946: typo correction
>>  - 6946: runAgentByClass improvements
>
> build.sh line 214:
> 
>> 212:     local agentExampleClass=$1
>> 213:     if [[ -z "${agentExampleClass}" ]]; then
>> 214:         err_log "emtpy class"
> 
> s/emtpy/empty/

corrected

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PR: https://git.openjdk.java.net/jmc/pull/183