cms-sw/cmssw — pull request #3149 by alja (2014-04-02 00:51:59+00:00)
Title: Fix in detecting cmssw environment in cmsShow script for patch releases

cmsShow script presumed that the path of the script itself matches $CMSSW_RELEASE_BASE,
In some cases this is not true. This change simplifies check for cmssw environment and works for main and patch releases.