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/freebsd-9.3-release/lib/libc/stdlib/
H A Dgetenv.cdiff 241483 Fri Oct 12 11:30:12 MDT 2012 ache MFC r241137,r241154

Using putenv() and later direct pointer contents modification it is possibe
to craft environment variables with similar names like that:
a=1
a=2
...
unsetenv("a") should remove them all to make later getenv("a") impossible.
Fix it to do so (this is GNU autoconf test #3 failure too).

PR: 172273

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