Fix Wstrict-prototypes warnings

src/AliasList.c

@@ -17,7 +17,7 @@ struct AliasList
     size_t size;
 };
 
-AliasList *AliasList_new()
+AliasList *AliasList_new(void)
 {
     struct AliasList *list = (AliasList *)calloc(1, sizeof(*list));
     if(!list)

src/InternalRefService.c

@@ -186,7 +186,7 @@ addnewRefTypeImpl(InternalRefService *service, NL_ReferenceTypeNode *node) {
     }
 }
 
-NL_ReferenceService *InternalRefService_new()
+NL_ReferenceService *InternalRefService_new(void)
 {
     InternalRefService *service =
         (InternalRefService *)calloc(1, sizeof(InternalRefService));

src/PrintfLogger.c

@@ -21,7 +21,7 @@ static void logStdOut(void *context, enum NodesetLoader_LogLevel level,
     printf("NODESETLOADER: %s : %s\n", logLevel[level], message);
 }
 
-NodesetLoader_Logger *InternalLogger_new()
+NodesetLoader_Logger *InternalLogger_new(void)
 {
     NodesetLoader_Logger *logger =
         (NodesetLoader_Logger *)calloc(1, sizeof(NodesetLoader_Logger));

src/Sort.c

@@ -240,7 +240,7 @@ static void walk_tree(SortContext *ctx, S_Node *rootNode,
         recurse_tree(ctx, rootNode->right, action);
 }
 
-SortContext *Sort_init()
+SortContext *Sort_init(void)
 {
     SortContext *ctx = (SortContext *)calloc(1, sizeof(SortContext));
     ctx->root1 = new_node(NULL);