[gold patch] Fix crash when a member of a lib group can't be opened

[Ian Lance Taylor]

Cary Coutant <ccoutant@google.com> writes:

> 2011-10-12  Cary Coutant  <ccoutant@google.com>
>
> 	* gold/readsyms.cc (Read_symbols::run): Don't queue an unblocker
> 	task for members of lib groups.

This is OK.

Note that ChangeLog should just say "readsyms.cc", not
"gold/readsyms.cc".

Thanks.

Ian