When building on Unix, there are times when the 'EX_LIB' MINFO variable
contains valuable information. Make sure to take care of it.
fixrules in util/pl/unix.pl was previously changed with a simpler fix of
rules, with a comment claiming that's compatible with -j. Unfortunately,
this breaks multiline rules and doesn't change anything for single line
rules. While at it, do not prefix pure echo lines with a 'cd $(TEST_D) &&',
as that's rather silly.
Reviewed-by: Andy Polyakov <appro@openssl.org>
8bf5b8ab22