Closes JabRef#13269 :

export footer only for commands that support --output

Author: 070jhz

jabkit/src/main/java/org/jabref/JabKit.java

@@ -106,7 +106,7 @@ private static void applyUsageFooters(CommandLine commandLine,
             boolean hasInputOption = subCommand.getCommandSpec().options().stream()
                                                .anyMatch(opt -> Arrays.asList(opt.names()).contains("--input-format"));
             boolean hasOutputOption = subCommand.getCommandSpec().options().stream()
-                                                .anyMatch(opt -> Arrays.asList(opt.names()).contains("--output-format"));
+                                                .anyMatch(opt -> Arrays.asList(opt.names()).contains("--output"));
 
             String footerText = "";
             footerText += hasInputOption ? inputFooter : "";