Minor doc typofix.

Signed-off-by: Edward Z. Yang <ezyang@mit.edu>
Typo
Small refactoring

pipeLoop now returns the final dflags, rather than having
runPipeline' extract it from the end state.
Inline get_output_fn

It's now only used once
Small refactoring: Don't pass a redundant output_spec around
Fix some m4/shell syntax in aclocal.m4, spotted by Jan Stolarek

[ ] is m4 syntax, so we need to use 'test foo' rather than '[ foo ]'.
Small refactoring: Don't pass redundant stop_phase to runPipeline
Small refactoring: Move the end-of-pipeline move into pipeLoop
Added exception handler for scheduleSContAction and yieldControlAction.
Fix sys/cpuset.h on FreeBSD 9.1; patch from kazu-yamamoto; fixes #7708
Make the #includes a little more correct in OSThreads.c
Fixing issue from an earlier merge which removed the code for inheriting computation on a black-hole. Fixed findLastUpdateFrame and printStackFrames function to handle underflow frame. Substrate upcall errors are printed to stderr.
Automatically changing the number of available processors.
Merge branch 'master' into ghc-lwc2
Removed tabs from tab-free files