Fix arg check in ioccc-status.sh

It should be != 1 rather than -gt 1. Not having this meant that if no
arg was specified the usage message was not printed and instead the arg
of the status.json file (which was not given) was shown to not exist
(because it was empty so not a file).

bin/ioccc-status.sh

@@ -24,7 +24,7 @@
 #
 # The -G option lets one set the path to grep(1).
 #
-export IOCCC_STATUS_SCRIPT_VERSION="0.0.3-0 2024-01-15" # major.minor.release-patch YYYY-MM-DD
+export IOCCC_STATUS_SCRIPT_VERSION="0.0.4-0 2024-01-22" # major.minor.release-patch YYYY-MM-DD
 
 SED="$(type -P sed)"
 GREP="$(type -P grep)"
@@ -109,8 +109,9 @@ shift $(( OPTIND - 1 ));
 
 # verify arg count
 #
-if [[ $# -gt 1 ]]; then
+if [[ $# != 1 ]]; then
     echo "$0: ERROR: expected no more than 1 arg, found: $#" 1>&2
+    echo 1>&2
     echo "$USAGE" 1>&2
     exit 3
 fi