HTTP/1.1 seems to be required for RHEV-M to respond right

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/branches/2.8@15585 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-server/lib/xcat/plugins/rhevm.pm

@@ -651,6 +651,7 @@ sub genreq {
 
     my $url = "https://".$rhevm->{name}.":8443".$api;
     my $request = HTTP::Request->new($method, $url, $header, $content);
+    $request->protocol('HTTP/1.1');
 
     return $request;
 }