Use #include <foo.h> instead of #include "foo.h" in most cases.

We rely on the include path to find many of these headers.  It
especially doesn't make sense to use #include "foo.h" for headers
in the top-level include directory.

plugins/sudoers/ldap_util.c

@@ -34,11 +34,11 @@
 #include <netinet/in.h>
 #include <arpa/inet.h>
 
-#include "sudoers.h"
-#include "interfaces.h"
-#include "sudo_lbuf.h"
-#include "sudo_ldap.h"
-#include "sudo_digest.h"
+#include <sudoers.h>
+#include <interfaces.h>
+#include <sudo_lbuf.h>
+#include <sudo_ldap.h>
+#include <sudo_digest.h>
 #include <gram.h>
 
 /*