cut: shorten error messages on bad syntax

We don't need to mimic GNU cut error messages.

$ cut -d@ -b3
cut: -d DELIM makes sense only with -f or -F
$ cut -s -b3
cut: -s makes sense only with -f or -F

function                                             old     new   delta
static._op_on_field                                   31      32      +1
.rodata                                           105659  105598     -61
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 1/-61)             Total: -60 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/coreutils/cut.c b/coreutils/cut.c
index 0913c4b68..af2fd9fd4 100644
--- a/coreutils/cut.c
+++ b/coreutils/cut.c
@@ -330,15 +330,15 @@ int cut_main(int argc UNUSED_PARAM, char **argv)
 
         /* non-field (char or byte) cutting has some special handling */
         if (!(opt & (OPT_FIELDS|OPT_REGEX))) {
-                static const char _op_on_field[] ALIGN1 = " only when operating on fields";
+                static const char _op_on_field[] ALIGN1 = " makes sense only with -f"IF_FEATURE_CUT_REGEX(" or -F");
 
                 if (opt & OPT_SUPPRESS) {
                         bb_error_msg_and_die
-                                ("suppressing non-delimited lines makes sense%s", _op_on_field);
+                                ("-s%s", _op_on_field);
                 }
                 if (opt & OPT_DELIM) {
                         bb_error_msg_and_die
-                                ("a delimiter may be specified%s", _op_on_field);
+                                ("-d DELIM%s", _op_on_field);
                 }
         }