Missing newline on cerr before solib-event stops debugger for good

Debugging the following little program on a CentOS 5 target with MIEngine and gdb 7.6.1-47.el5 stops the debugger without any way to continue:

#include <iostream>
#include <dlfcn.h>

int main() {
    std::cerr << "Hello World";
    //std::cerr << std::endl; // fixes the issue

    if(!dlopen("libpthread.so.0", RTLD_LAZY)) {
      std::cout << "error: " << dlerror() << std::endl;
      return 1;
    }
    return 0;
}

The last message in the log reads:

Hello World*stopped,reason="solib-event",thread-id="1",stopped-threads="all",core="11"

The problem appears to be a missing newline on the cerr pipe which hides the gdb message that follows afterwards. Adding the newline fixes the issue.

Reproduce the C++ program on the CentOS 5 target with MIEngine and gdb 7.6.1-47.el5, then inspect the MI log around the cerr output and solib-event stop. Done means the debugger can continue and the gdb message following the cerr output is visible rather than hidden.