fix: memfile reading on linux vs windows

tests/lib_use.c

@@ -11,9 +11,12 @@ int main(void) {
 #ifdef _WIN32
 	fseek(memfile, 0, SEEK_SET);
 	fread(output, sizeof(char), sizeof(output), memfile);
-#endif
         printf("%s", output);
         fclose(memfile);
+#else
+	fclose(memfile);
+	printf("%s", output);
+#endif
     } else {
         printf("null\n");
     }