Adds regression test to SecStatusEngine

Just checking the error log while have SecStatusEngine set to On in a first
test and Off in a second.

tests/regression/misc/20-status-engine.pl

@@ -0,0 +1,49 @@
+### Test the SecStatusEngine
+
+# On
+{
+	type => "misc",
+	comment => "Setting SecStatusEngine to On",
+	conf => qq(
+		SecRuleEngine On
+		SecStatusEngine On
+	),
+	match_log => {
+		error => [ qr/ModSecurity: StatusEngine call successfully sent/, 1],
+		-error => [ qr/Status engine is currently disabled, enable it by set SecStatusEngine to On/, 1],
+	},
+	match_response => {
+		status => qr/^200$/,
+	},
+	request => new HTTP::Request(
+		POST => "http://$ENV{SERVER_NAME}:$ENV{SERVER_PORT}/test.txt",
+		[
+			"Content-Type" => "application/x-www-form-urlencoded",
+		],
+		"arg1=val1&arg2=val2",
+	),
+},
+# Off
+{
+	type => "misc",
+	comment => "Setting SecStatusEngine to Off",
+	conf => qq(
+		SecRuleEngine On
+		SecStatusEngine Off
+	),
+	match_log => {
+		-error => [ qr/ModSecurity: StatusEngine call successfully sent/, 1],
+		error => [ qr/Status engine is currently disabled, enable it by set SecStatusEngine to On/, 1],
+	},
+	match_response => {
+		status => qr/^200$/,
+	},
+	request => new HTTP::Request(
+		POST => "http://$ENV{SERVER_NAME}:$ENV{SERVER_PORT}/test.txt",
+		[
+			"Content-Type" => "application/x-www-form-urlencoded",
+		],
+		"arg1=val1&arg2=val2",
+	),
+},
+