Bug#895886: set jcommander dep to :debian works

[olivier sallou]

in testng pom file, if I replace:

                <dependency>
                        <groupId>com.beust</groupId>
                        <artifactId>jcommander</artifactId>
                        <version>1.x</version>
                </dependency>

by

                <dependency>
                        <groupId>com.beust</groupId>
                        <artifactId>jcommander</artifactId>
                        <version>debian</version>
                </dependency>

testing works