khost: fix description for -r option in man/help

refs #2137

Change-Id: I22356a2a3a3792b8d4f565ab9f36b7b4cd092827

man/khost.8in

@@ -37,7 +37,7 @@ Send ANY query with verbose mode.
 Enable debug messages if any.
 .TP
 .BI -r
-Set recursion (RD flag).
+Disable recursion.
 .TP
 .BI -s
 Stop quering next nameserver if SERVFAIL response is received.

src/utils/host/host_params.c

@@ -175,7 +175,7 @@ static void host_help(int argc, char *argv[])
 	       "       -a  Same as -t ANY -v.\n"
 	       "       -C  (NOT YET IMPLEMENTED)\n"
 	       "       -d  Allow debug messages.\n"
-	       "       -r  Set RD flag.\n"
+	       "       -r  Disable recursion.\n"
 	       "       -s  Stop if servfail.\n"
 	       "       -T  Use TCP procotol.\n"
 	       "       -v  Verbose output.\n"