Core/Scripts: Replace rand with urand in most cases (using regexp)

Used: perl -pi -e 's/([0-9]+) \+ rand\(\)\%([0-9]+)/"urand(".$1.", ".($1+$2).")"/ge'

src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/boss_leotheras_the_blind.cpp

@@ -691,8 +691,8 @@ public:
 
         void Reset()
         {
-            Mindblast_Timer  = 3000 + rand()%5000;
-            Earthshock_Timer = 5000 + rand()%5000;
+            Mindblast_Timer  = urand(3000, 8000);
+            Earthshock_Timer = urand(5000, 10000);
 
             if (instance)
             {
@@ -764,7 +764,7 @@ public:
 
                 if (target)DoCast(target, SPELL_MINDBLAST);
 
-                Mindblast_Timer = 10000 + rand()%5000;
+                Mindblast_Timer = urand(10000, 15000);
             } else Mindblast_Timer -= diff;
 
             if (Earthshock_Timer <= diff)
@@ -787,7 +787,7 @@ public:
                         }
                     }
                 }
-                Earthshock_Timer = 8000 + rand()%7000;
+                Earthshock_Timer = urand(8000, 15000);
             } else Earthshock_Timer -= diff;
             DoMeleeAttackIfReady();
         }