compiler warning noises.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@2194 c06c8d41-db1a-0410-9941-cceddc491573
VE7FMKHCEFZ4ENKLRFGKMJWM3QEHAVUC5EKL2R4ESQ3P2XFKFHAAC
char num_buf[10];
sprintf(num_buf, "%lu", key_list.size());
list_commands_err = "Too many matching ";
list_commands_err += type;
list_commands_err += "s (";
list_commands_err += num_buf;
list_commands_err += ") to display";
std::ostringstream os;
os << "Too many matching " << type << "s (" << key_list.size()
<< ") to display.";
list_commands_err = os.str();