RT3271: Don't use "if !" in shell lines

For portability don't use "if ! expr"

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
RT3271: Don't use "if !" in shell lines

For portability don't use "if ! expr"

Reviewed-by: Geoff Thorpe <geoff@openssl.org>
Merge branch 'master' of git.openssl.org:openssl

Previous commit was reviewed by Geoff, not Stephen:
Reviewed-by: Geoff Thorpe <geoff@openssl.org>
RT3192: spurious error in DSA verify

This is funny; Ben commented in the source, Matt opend a ticket,
and Rich is doing the submit.  Need more code-review? :)

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>