v23/internal/test: add --info flag to gradlew :lib:test
v23/internal/test: add --info flag to gradlew :lib:test

Without this flag, test failures are cryptic:

:lib:test

io.v.AllTests > io.v.x.jni.test.fortune.FortuneTest.testGlob FAILED
    java.lang.AssertionError at FortuneTest.java:189

98 tests completed, 1 failed
:lib:test FAILED

With the change, output looks like

io.v.AllTests > io.v.x.jni.test.fortune.FortuneTest.testGlob FAILED
    java.lang.AssertionError: Not true that <[{name:/@5@tcp@127.0.0.1:53521@bf8f8fb0203fcf00903fd050f01f4020@s@sjr@jring.mtv.corp.google.com-27483@@/helloworld, servers:[], servesMountTable:false, isLeaf:false}, {name:/@5@tcp@127.0.0.1:53521@bf8f8fb0203fcf00903fd050f01f4020@s@sjr@jring.mtv.corp.google.com-27483@@/Hello, world!, error:io.v.v23.verror.VException: VExceptionTest  unknown error Some error}]> has a size of <1>. It is <2>
        at com.google.common.truth.FailureStrategy.fail(FailureStrategy.java:27)
        at com.google.common.truth.FailureStrategy.fail(FailureStrategy.java:23)
        at com.google.common.truth.Subject.failWithBadResults(Subject.java:270)
        at com.google.common.truth.IterableSubject.hasSize(IterableSubject.java:88)
        at io.v.x.jni.test.fortune.FortuneTest.testGlob(FortuneTest.java:189)
Gradle Test Executor 1 finished executing tests.

99 tests completed, 1 failed

Change-Id: I60f5f166f4e6dbb80466edbe2c555fa7170a6cc0

vanadium/go.jiri,vanadium/go.jiri