Changed arpwatch_initrc_domtrans domain summary to match style.

Restored arpwatch_initrc_exec_t require because it's still used in arpwatch_admin interface

policy/modules/services/arpwatch.if

@@ -6,7 +6,7 @@
 ## </summary>
 ## <param name="domain">
 ##	<summary>
-##	The type of the process performing this action.
+##	Domain allowed access.
 ##	</summary>
 ## </param>
 #
@@ -134,6 +134,7 @@ interface(`arpwatch_admin',`
 	gen_require(`
 		type arpwatch_t, arpwatch_tmp_t;
 		type arpwatch_data_t, arpwatch_var_run_t;
+		type arpwatch_initrc_exec_t;
 	')
 
 	allow $1 arpwatch_t:process { ptrace signal_perms getattr };