libselinux: getsebool: always free names

When getsebool's main() fails to allocate memory for the boolean names,
it returns without freeing variables first, even though other errors do
this (with label "out").

This silences a warning reported by clang's static analyzer.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
1 file changed