busybox: alter help message in standalone shell mode

Signed-off-by: Ron Yorston <rmy@frippery.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

libbb/appletlib.c

@@ -641,10 +641,19 @@ static int busybox_main(char **argv)
 			)
 			"   or: function [arguments]...\n"
 			"\n"
+			IF_NOT_FEATURE_SH_STANDALONE(
 			"\tBusyBox is a multi-call binary that combines many common Unix\n"
 			"\tutilities into a single executable.  Most people will create a\n"
 			"\tlink to busybox for each function they wish to use and BusyBox\n"
 			"\twill act like whatever it was invoked as.\n"
+			)
+			IF_FEATURE_SH_STANDALONE(
+			"\tBusyBox is a multi-call binary that combines many common Unix\n"
+			"\tutilities into a single executable.  The shell in this build\n"
+			"\tis configured to run built-in utilities without $PATH search.\n"
+			"\tYou don't need to install a link to busybox for each utility.\n"
+			"\tTo run external program, use full path (/sbin/ip instead of ip).\n"
+			)
 			"\n"
 			"Currently defined functions:\n"
 		);