No nullptr, propector -> prospect

README.rst

@@ -293,8 +293,8 @@ probe
 =====
 Can be used to determine tile properties like temperature.
 
-prospector
+prospect
-============
+========
 Lists all available minerals on the map, how much of them there is and the z-levels where they can be found. By default, only processes the already discovered part of the map.
 
 Options

library/Core.cpp

@@ -455,7 +455,7 @@ bool Core::Init()
         out << "Error while reading Memory.xml:\n";
         out << err.what() << std::endl;
         delete vif;
-        vif = nullptr;
+        vif = NULL;
         errorstate = true;
         fatal(out.str(), true);
         return false;

library/modules/Creatures.cpp

@@ -120,11 +120,11 @@ bool Creatures::Finish()
 
 df_creature * Creatures::GetCreature (const int32_t index)
 {
-    if(!d->Started) return nullptr;
+    if(!d->Started) return NULL;
 
     // read pointer from vector at position
     if(index > creatures->size())
-        return nullptr;
+        return 0;
     return creatures->at(index);
 }
 
@@ -156,7 +156,7 @@ int32_t Creatures::GetCreatureInBox (int32_t index, df_creature ** furball,
         }
         index++;
     }
-    *furball = nullptr;
+    *furball = NULL;
     return -1;
 }