* Added argument checking and error handling to GenPat. Now returns exit codes as well to indicate success/failure (and the reason for failure). Only GenPat has changed in this version compared to 2.0 final.
* Bug Fix: GenPat no longer gives an Access Violation when attempting to patch a file smaller than 64 bytes into a file larger than 64 bytes.
git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@3318 212acab6-be3b-0410-9dea-997c60f758d6
