ipaddrlabel: Improve help text precision

Neither 'list' nor 'flush' actions accept parameters, and with given
prefix the action keyword is not optional anymore.

Signed-off-by: Phil Sutter <phil@nwl.cc>

diff --git a/ip/ipaddrlabel.c b/ip/ipaddrlabel.c
index f01bc269e8f4124ef36c5a11cb8e25a223608029..ef093cbe6c30d35e50983143349f14081bc3cc1a 100644 (file)
--- a/ip/ipaddrlabel.c
+++ b/ip/ipaddrlabel.c
@@ -49,7 +49,8 @@ static void usage(void) __attribute__((noreturn));
 
 static void usage(void)
 {
-       fprintf(stderr, "Usage: ip addrlabel [ list | add | del | flush ] prefix PREFIX [ dev DEV ] [ label LABEL ]\n");
+       fprintf(stderr, "Usage: ip addrlabel { add | del } prefix PREFIX [ dev DEV ] [ label LABEL ]\n");
+       fprintf(stderr, "       ip addrlabel [ list | flush | help ]\n");
        exit(-1);
 }