REGTESTS: ssl: wrong feature cmd in show_ssl_ocspresponse.vtc

The "feature cmd" needs to be separated in 2 parts to check the openssl
command.
diff --git a/reg-tests/ssl/show_ssl_ocspresponse.vtc b/reg-tests/ssl/show_ssl_ocspresponse.vtc
index 86cbc8d..3809366 100644
--- a/reg-tests/ssl/show_ssl_ocspresponse.vtc
+++ b/reg-tests/ssl/show_ssl_ocspresponse.vtc
@@ -22,7 +22,7 @@
 varnishtest "Test the 'show ssl ocsp-response' and 'show ssl cert foo.pem.ocsp' features of the CLI"
 feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 feature cmd "$HAPROXY_PROGRAM -cc 'feature(OPENSSL)'"
-feature cmd "command -v socat openssl"
+feature cmd "command -v socat && command -v openssl"
 feature ignore_unknown_macro
 
 haproxy h1 -conf {