Fix ITestS3GuardToolLocal#testInitNegativeRead test failure

[ERROR] Tests run: 30, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 98.684 s <<< FAILURE! - in org.apache.hadoop.fs.s3a.s3guard.ITestS3GuardToolLocal
[ERROR] testInitNegativeRead(org.apache.hadoop.fs.s3a.s3guard.ITestS3GuardToolLocal)  Time elapsed: 1.679 s  <<< ERROR!
java.lang.IllegalArgumentException: bucket
	at com.google.common.base.Preconditions.checkArgument(Preconditions.java:141)
	at org.apache.hadoop.fs.s3a.S3AUtils.propagateBucketOptions(S3AUtils.java:1134)
	at org.apache.hadoop.fs.s3a.s3guard.S3GuardTool$Init.run(S3GuardTool.java:487)
	at org.apache.hadoop.fs.s3a.s3guard.S3GuardTool.run(S3GuardTool.java:401)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
	at org.apache.hadoop.fs.s3a.s3guard.S3GuardTool.run(S3GuardTool.java:1672)
	at org.apache.hadoop.fs.s3a.s3guard.AbstractS3GuardToolTestBase.run(AbstractS3GuardToolTestBase.java:137)
	at org.apache.hadoop.fs.s3a.s3guard.AbstractS3GuardToolTestBase$1.call(AbstractS3GuardToolTestBase.java:154)
	at org.apache.hadoop.fs.s3a.s3guard.AbstractS3GuardToolTestBase$1.call(AbstractS3GuardToolTestBase.java:151)
	at org.apache.hadoop.test.LambdaTestUtils.intercept(LambdaTestUtils.java:498)
	at org.apache.hadoop.test.LambdaTestUtils.intercept(LambdaTestUtils.java:384)
	at org.apache.hadoop.fs.s3a.s3guard.AbstractS3GuardToolTestBase.runToFailure(AbstractS3GuardToolTestBase.java:150)