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/auth/secureware.c

@@ -43,7 +43,7 @@
 #endif /* __hpux */
 #include <prot.h>
 
-#include "sudoers.h"
+#include <sudoers.h>
 #include "sudo_auth.h"
 
 #ifdef __alpha