Update checkstyle.xml

[llorllale]

Use this one.

[0pdd]

@llorllale the puzzle #168 is still not solved.

[0pdd]

@llorllale the puzzle #171 is still not solved; solved: #168.

[0pdd]

@llorllale the puzzle #173 is still not solved; solved: #168, #171.

[0pdd]

@llorllale the puzzle #175 is still not solved; solved: #168, #171, #173.

[0pdd]

@llorllale the puzzle #177 is still not solved; solved: #168, #171, #173, #175.

[0pdd]

@llorllale the puzzle #179 is still not solved; solved: #168, #171, #173, #175, #177.

[0pdd]

@llorllale the puzzle #181 is still not solved; solved: #168, #171, #173, #175, #177, #179.

[0pdd]

@llorllale the puzzle #183 is still not solved; solved: #168, #171, #173, #175, #177, #179, #181.

[0pdd]

@llorllale the puzzle #186 is still not solved; solved: #168, #171, #173, #175, #177, #179, #181, #183.

[0pdd]

@llorllale the puzzle #188 is still not solved; solved: #168, #171, #173, #175, #177, #179, #181, #183, #186.

[0pdd]

@llorllale the puzzle #190 is still not solved; solved: #168, #171, #173, #175, #177, #179, #181, #183, #186, #188.

[0pdd]

@llorllale the puzzle #192 is still not solved; solved: #168, #171, #173, #175, #177, #179, #181, #183, #186, #188, #190.

[0pdd]

@llorllale all 12 puzzles are solved here: #168, #171, #173, #175, #177, #179, #181, #183, #186, #188, #190, #192.