[refactory-2020] fixes to address review comments on modules.

corsika/modules/qgsjetII/Random.hpp

@@ -15,7 +15,7 @@ namespace qgsjetII {
 
   double rndm_interface() {
     static corsika::default_prng_type& rng =
-        corsika::RNGManager::getInstance().getRandomStream("qgran");
+        corsika::RNGManager::getInstance().getRandomStream("qgsjet");
     std::uniform_real_distribution<double> dist;
     return dist(rng);
   }

corsika/modules/sibyll/Random.hpp

@@ -15,7 +15,7 @@ namespace sibyll {
 
   double rndm_interface() {
     static corsika::default_prng_type& rng =
-        corsika::RNGManager::getInstance().getRandomStream("s_rndm");
+        corsika::RNGManager::getInstance().getRandomStream("sibyll");
     std::uniform_real_distribution<double> dist;
     return dist(rng);
   }

corsika/modules/urqmd/Random.hpp

@@ -18,7 +18,7 @@ namespace urqmd {
    */
   double rndm_interface() {
     static corsika::default_prng_type& rng =
-        corsika::RNGManager::getInstance().getRandomStream("UrQMD");
+        corsika::RNGManager::getInstance().getRandomStream("urqmd");
     static std::uniform_real_distribution<double> dist;
     return dist(rng);
   }