style: Update.

* src/dctc/java/com/dataiku/dctc/command/abs/Command.java,
  src/dctc/java/com/dataiku/dctc/command/abs/ListFilesCommand.java,
  src/dctc/java/com/dataiku/dctc/command/cat/AbstractBytesCatAlgorithm.java,
  src/dctc/java/com/dataiku/dctc/command/cat/CatHeaderPrinter.java:
  Here.
dispatch: Correct error message.

* src/dctc/java/com/dataiku/dctc/command/Dispatch.java: Delete the
  negation.
globbing: More test.

* src/dctc/test/com/dataiku/dctc/test/GlobbingTest.java: Add missing
  case.
globbing: Reduce the number of call to substring.

* src/dctc/java/com/dataiku/dctc/Globbing.java: Optimize using index
  instead of substring creation.
globbing: Delete useless assert.

* src/dctc/java/com/dataiku/dctc/Globbing.java: Not useless but false
  assertion.
test: Test should not be disable but fixed.

* src/dctc/test/com/dataiku/dctc/command/CatTest.java,
  src/dctc/test/com/dataiku/dctc/command/CmpTest.java: Enable test and
  fixed them.
test: Extend settings with out/err reset function.

* src/dctc/test/com/dataiku/dctc/Settings.java: add a functin for
  reset the outputs.
test: Less empty tests.

* tests/cmp.test: Here.