OPM/opm-core — pull request #138 by bska (2013-02-01 15:35:24+00:00)
Title: Correct a number of latent issues in `tarjan.c`

This set of changes installs a number of corrections to latent issues in the `tarjan.c` module.

Specifically,
* Uses a portable method of zeroing a vector `int`s
* Eliminates a few redundant explicit type conversions
* Eliminates a release-mode only build-time warning
* Replaces an assignment (within an `assert()`) with the intended equality test