Bug 840393: Improve error reporting. Fix a Visual C++ compiler warning on signed/unsigned comparison in RC4_InitContext. r=ryan.sleevi.
Bug 840393: Improve error reporting. Fix a Visual C++ compiler warning on
signed/unsigned comparison in RC4_InitContext. r=ryan.sleevi.

thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss,thespooler/nss