Cleanup comments in FFIHelper.hsc.
Cleanup comments in FFIHelper.hsc.

Ignore-this: 1fb70cba365eac0883e59dec5ad05840

darcs-hash:20090826135646-5fe1c-cdcb5d813c0a877d5bc1e8cdf8604ef67211e0ce.gz

ekmett/hmpfr