RT1834: Fix PKCS7_verify return value

The function returns 0 or 1, only.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
Merge branch 'master' of git.openssl.org:openssl

empty merge; script hiccup.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
RT2842: Remove spurious close-comment marker.

Also, I (rsalz) changed "#ifdef undef" to "#if 0"

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
RT2843: Remove another spurious close-comment token

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
RT2849: Redundant check of "dsa" variable.

In the current code, the check isn't redundant.
And in fact the REAL check was missing.
This avoids a NULL-deref crash.

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