[PATCH roland/env-only] Avoid re-exec-self in bug-setlocale1.

[Mike Frysinger]

On 04 Mar 2015 13:23, Roland McGrath wrote:
> This extends the makefile infrastructure for tests to use a variable
> <testname>-ENV-only that is like the existing <testname>-ENV but for
> cases where the test program should run with a completely bare
> environment except for the explicit assignments in the makefile.
> This lets us get rid of the use of execve in bug-setlocale1 (and any
> similar cases I have not yet noticed).

lgtm
-mike
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