[PATCH 1/2] gdb: Update producer check for Intel compilers.

[Tom Tromey]

>> Can someone point me to a thread/website that has more background
>> info? Is it because it was broken in older versions of libstdc++?
>> Just out of curiosity, I am not suggesting any change.

It was just a conversation on irc one day.  The gist was that std::regex
is not very good and my takeaway was that GDB should avoid it.  I'm
afraid I don't have any better details than that, I've forgotten them :(

We could certainly revisit this if we felt the need.

Tom