MINOR: arg: improve the error message on missing closing parenthesis
When the closing brace is missing after an argument (acl, ...), the
error may report something like "expected ')' before ''". Let's just
drop "before ''" when the final word is empty to make the message a
bit clearer.
diff --git a/src/arg.c b/src/arg.c
index 8b3dccf..5d5766b 100644
--- a/src/arg.c
+++ b/src/arg.c
@@ -359,7 +359,12 @@
} else {
/* the caller is responsible for freeing this message */
char *word = (len > 0) ? my_strndup(in, len) : (char *)in;
- memprintf(err_msg, "expected ')' before '%s'", word);
+
+ if (*word)
+ memprintf(err_msg, "expected ')' before '%s'", word);
+ else
+ memprintf(err_msg, "expected ')'");
+
if (len > 0)
free(word);
/* when we're missing a right paren, the empty part preceding