[testsuite patch] Fix paginate-*.exp race for "read1"

[Jan Kratochvil]

On Tue, 22 Jul 2014 20:38:16 +0200, Jan Kratochvil wrote:
> even with this "read1"-fix patch it is not fully reliable.
> But this time I do not have a reliable reproducer, it just FAILs during fully
> parallel Fedora GDB build; but running the Fedora GDB test by hand PASSes.
> 
> +FAIL: gdb.base/paginate-bg-execution.exp: cancel with ctrl-c: cancel pagination (timeout)
> +FAIL: gdb.base/paginate-execution-startup.exp: cancel with ctrl-c: cancel pagination (timeout)

These FAILs were due to
	readline-6.3-2.fc21.x86_64
and they PASS now with
	readline-6.3-3.fc22.x86_64
Some discussion about the update was here but I did not investigate it more:
	readline-6.3 is available
	https://bugzilla.redhat.com/show_bug.cgi?id=1071336

It was behaving the same also with your patch.


Jan