REGTESTS: Replace REQUIRE_VERSION=2.5 with 'haproxy -cc'

This is safe, because running `haproxy -cc 'version_atleast(2.5-dev0)'` on
HAProxy 2.4 will also result in an exit code of 1.

reg-tests/http-messaging/http_abortonclose.vtc

@@ -4,7 +4,7 @@ feature ignore_unknown_macro
 # NOTE : This test may fail if too many vtest are running in parallel because
 #        the port reserved for closed s1 server may be reused by another vtest
 
-#REQUIRE_VERSION=2.5
+feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 #REGTEST_TYPE=slow
 
 # b1 : Don't send /c4 before /c3 was received by s2 server

reg-tests/ssl/new_del_ssl_cafile.vtc

@@ -9,7 +9,7 @@
 # - Check that you have socat
 
 varnishtest "Test the 'new ssl ca-file' and 'del ssl ca-file' commands of the CLI"
-#REQUIRE_VERSION=2.5
+feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 #REQUIRE_OPTIONS=OPENSSL
 #REQUIRE_BINARIES=socat
 feature ignore_unknown_macro

reg-tests/ssl/new_del_ssl_crlfile.vtc

@@ -9,7 +9,7 @@
 # - Check that you have socat
 
 varnishtest "Test the 'new ssl crl-file' and 'del ssl crl-file' commands of the CLI"
-#REQUIRE_VERSION=2.5
+feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 #REQUIRE_OPTIONS=OPENSSL
 #REQUIRE_BINARIES=socat
 feature ignore_unknown_macro

reg-tests/ssl/set_ssl_cafile.vtc

@@ -15,7 +15,7 @@
 # - Check that you have socat
 
 varnishtest "Test the 'set ssl ca-file' feature of the CLI"
-#REQUIRE_VERSION=2.5
+feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 #REQUIRE_OPTIONS=OPENSSL
 #REQUIRE_BINARIES=socat
 feature ignore_unknown_macro

reg-tests/ssl/set_ssl_crlfile.vtc

@@ -18,7 +18,7 @@
 # - Check that you have socat
 
 varnishtest "Test the 'set ssl crl-file' feature of the CLI"
-#REQUIRE_VERSION=2.5
+feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 #REQUIRE_OPTIONS=OPENSSL
 #REQUIRE_BINARIES=socat
 feature ignore_unknown_macro

reg-tests/ssl/show_ssl_ocspresponse.vtc

@@ -19,7 +19,7 @@
 # - Check that you have socat
 
 varnishtest "Test the 'show ssl ocsp-response' and 'show ssl cert foo.pem.ocsp' features of the CLI"
-#REQUIRE_VERSION=2.5
+feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 #REQUIRE_OPTIONS=OPENSSL
 #REQUIRE_BINARIES=socat
 feature ignore_unknown_macro

reg-tests/startup/check_condition.vtc

@@ -1,6 +1,5 @@
 varnishtest "Tests the -cc argument"
 
-#REQUIRE_VERSION=2.5
 feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
 
 shell {