Get rid of DOS line endings in test_crash_runtimeabort.js (no bug)

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extra : rebase_source : c59c15e2c3abde291d6a53a26c5f3d04aae8ab23
bug 918389 - move XPCOM abort messages into separate crash annotations. r=bsmedberg

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extra : rebase_source : d1762cb08c795020e2ca7612b903cd1f3d5ade50