base system() on posix_spawn
authorRich Felker <dalias@aerifal.cx>
Sun, 3 Feb 2013 23:21:04 +0000 (18:21 -0500)
committerRich Felker <dalias@aerifal.cx>
Sun, 3 Feb 2013 23:21:04 +0000 (18:21 -0500)
this avoids duplicating the fragile logic for executing an external
program without fork.


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