Adjust Header to be non Nul Terminated

file/include/simdata/simDatabase.hpp

@@ -88,9 +88,8 @@ namespace file
         {
           std::ifstream in(BASE_DIRECTORY SIMDATABASE, std::ifstream::binary);
 
-          // File Header
           std::string ident = readString(in, 5);
-          if (ident.compare("VGAS") != 0) {
+          if (ident.compare(SIMDATABASE_HEADER) != 0) {
             throw std::invalid_argument("Wrong file");
           }
           std::uint8_t version = read<std::uint8_t>(in);
@@ -133,9 +132,9 @@ namespace file
         {
           std::ofstream out(BASE_DIRECTORY SIMDATABASE, std::fstream::binary);
 
-          // File Header, Last member is version
-          std::uint8_t header[] = {'V', 'G', 'A', 'S', '\0', 1};
-          out.write(reinterpret_cast<const char *>(header), 6);
+          // File Header
+          out.write(SIMDATABASE_HEADER, 4);
+          out.write("\1", 1);
           // Num Airports
           write<std::uint16_t>(out, airports.size());
           // Airport