fix errors and warnings in PHPCBF
fix errors and warnings in PHPCBF

FILE: ...ramius/ChangeSet/src/ChangeSet/IdentityMap/SimpleIdentityMap.php
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FOUND 1 ERROR AND 1 WARNING AFFECTING 2 LINES
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  3 | ERROR   | [x] There must be one blank line after the namespace
    |         |     declaration
 34 | WARNING | [ ] Line exceeds 120 characters; contains 136
    |         |     characters
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PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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Ocramius/ChangeSet