MINOR: arg: improve wording on error reporting

We make the distinction between missing too many arguments and no
arguments supported.

diff --git a/src/arg.c b/src/arg.c
index e7bed1ed9d3d215ac22522a1dd8c52c363fe331a..edaeee7607db69d556a05f89567e50c00d8931ba 100644 (file)
--- a/src/arg.c
+++ b/src/arg.c
@@ -263,7 +263,7 @@ int make_arg_list(const char *in, int len, unsigned int mask, struct arg **argp,
        if (pos < min_arg) {
                /* not enough arguments */
                memprintf(err_msg,
-                         "Missing arguments (got %d/%d), type '%s' expected",
+                         "missing arguments (got %d/%d), type '%s' expected",
                          pos, min_arg, arg_type_names[(mask >> (pos * 4)) & 15]);
                goto err;
        }
@@ -272,8 +272,11 @@ int make_arg_list(const char *in, int len, unsigned int mask, struct arg **argp,
                /* too many arguments, starting at <in> */
                /* the caller is responsible for freeing this message */
                word = my_strndup(in, len);
-               memprintf(err_msg, "end of arguments expected at position %d, but got '%s'",
-                         pos + 1, word);
+               if (nbarg)
+                       memprintf(err_msg, "end of arguments expected at position %d, but got '%s'",
+                                 pos + 1, word);
+               else
+                       memprintf(err_msg, "no argument supported, but got '%s'", word);
                free(word); word = NULL;
                goto err;
        }