Fixed the newrt logger to truncate output strings, modified a few test cases to work with both runtimes#8241

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toddaaro wants to merge 3 commits intorust-lang:masterfrom

toddaaro:single-threaded

Commits on Aug 2, 2013

std: Implement SingleThreaded spawn mode for newsched

brson
authored and
toddaaro
committed
modified logging function to truncate output and adjusted error output formatting tests to be compatible with both the new and old runtimes
toddaaro
committed
fixed the buffer to make it a more reasonable size
toddaaro
committed