Make the "make ssphp" command more version-generic

Changing the "--transform" flag in tar to use a regex,
so that's one less place you have to specify the full
version.

Change-Id: I9d41ecc24f9d2116424be706e793f1f2618c35cf

Makefile

@@ -62,7 +62,7 @@ ifdef simplesamlphp
 	@echo "SimpleSAMLphp already exists - doing nothing"
 else
 	@echo "Pulling SimpleSAMLphp from download ..."
-	@curl -sSL https://github.com/simplesamlphp/simplesamlphp/releases/download/v1.14.3/simplesamlphp-1.14.3.tar.gz | tar  --transform s/simplesamlphp-1.14.3/simplesamlphp/ -C htdocs/auth/saml/extlib -xzf -
+	@curl -sSL https://github.com/simplesamlphp/simplesamlphp/releases/download/v1.14.3/simplesamlphp-1.14.3.tar.gz | tar  --transform 's/simplesamlphp-[0-9]+\.[0-9]+\.[0-9]+/simplesamlphp/x1' -C htdocs/auth/saml/extlib -xzf -
 	@php external/composer.phar --working-dir=htdocs/auth/saml/extlib/simplesamlphp update
 endif