kconfig: nconf: rewrite labels of function keys line

>From: Roland Eggner <edvx1@systemanalysen.net>

More reasonable labels of function keys line.  Rename labels and keep menu
width, as required for fitting on COLUMNS=80 terminals:
•  s/Insts/Help 2/
•  s/Config/ShowAll/
Signed-off-by: Roland Eggner <edvx1@systemanalysen.net>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

scripts/kconfig/nconf.c

@@ -312,19 +312,19 @@ struct function_keys function_keys[] = {
 	},
 	{
 		.key_str = "F2",
-		.func = "Sym Info",
+		.func = "SymInfo",
 		.key = F_SYMBOL,
 		.handler = handle_f2,
 	},
 	{
 		.key_str = "F3",
-		.func = "Insts",
+		.func = "Help 2",
 		.key = F_INSTS,
 		.handler = handle_f3,
 	},
 	{
 		.key_str = "F4",
-		.func = "Config",
+		.func = "ShowAll",
 		.key = F_CONF,
 		.handler = handle_f4,
 	},
@@ -348,7 +348,7 @@ struct function_keys function_keys[] = {
 	},
 	{
 		.key_str = "F8",
-		.func = "Sym Search",
+		.func = "SymSearch",
 		.key = F_SEARCH,
 		.handler = handle_f8,
 	},