[PATCH] Add UNSUPPORTED check in elf/tst-pldd.

[Stefan Liebler]

Hi,

the testcase forks a child process and runs pldd with PID of
this child.  On systems where /proc/sys/kernel/yama/ptrace_scope
differs from zero, pldd will fail with
/usr/bin/pldd: cannot attach to process 3: Operation not permitted

This patch checks if ptrace_scope is zero and otherwise marks the
test as UNSUPPORTED.

Bye
Stefan

ChangeLog:

	* elf/tst-pldd.c (do_test): Add UNSUPPORTED check.
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