Failures on Debian-s390x-native-extended-gdbserver-m64, branch master

[sergiodj+buildbot@sergiodj.net]

Buildslave:
	debian-jessie-s390x-1

Full Build URL:
	<http://gdb-build.sergiodj.net/builders/Debian-s390x-native-extended-gdbserver-m64/builds/4080>

Commit(s) tested:
	59a561480d547d041127630b1ba17a284eef8225

Author(s) (in the same order as the commits):
	Andreas Arnez <arnez@linux.vnet.ibm.com>

Subject:
	Fix spurious FAILs with examine-backward.exp

Testsuite log (gdb.sum and gdb.log) URL(s):
	<http://gdb-build.sergiodj.net/results/Debian-s390x-native-extended-gdbserver-m64/59/59a561480d547d041127630b1ba17a284eef8225/>