small doc fix(forum)

gcontini

2021-05-26 7c06e1f7778b7536300444fa094c80a8b408d8b7

 src/library/base/file_utils.cpp

@@ -45,7 +45,7 @@
      in.read(&contents[0], limited_size);
      in.close();
   } else {
      throw(std::strerror(errno));
      throw runtime_error(std::strerror(errno));
   }
   return contents;
}