more --help text tweaks

function                                             old     new   delta
packed_usage                                       33545   33581     +36

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/hostname.c b/networking/hostname.c
index f96daed..5491034 100644
--- a/networking/hostname.c
+++ b/networking/hostname.c
@@ -29,9 +29,9 @@
 //kbuild: lib-$(CONFIG_DNSDOMAINNAME) += hostname.o
 
 //usage:#define hostname_trivial_usage
-//usage:       "[OPTIONS] [HOSTNAME | -F FILE]"
+//usage:       "[-sidf] [HOSTNAME | -F FILE]"
 //usage:#define hostname_full_usage "\n\n"
-//usage:       "Get or set hostname or DNS domain name\n"
+//usage:       "Show or set hostname or DNS domain name\n"
 //usage:     "\n	-s	Short"
 //usage:     "\n	-i	Addresses for the hostname"
 //usage:     "\n	-d	DNS domain name"