Fix missing separator in module info line (usedby and using lists) (#9241)

Fix module info genModulesInfoStringRenderModulesList lack separator when there's more than one module in the list.

Co-authored-by: Oran Agra <oran@redislabs.com>
(cherry picked from commit 1895e134a7)

src/module.c

@@ -7785,8 +7785,9 @@ sds genModulesInfoStringRenderModulesList(list *l) {
     while((ln = listNext(&li))) {
         RedisModule *module = ln->value;
         output = sdscat(output,module->name);
+        if (ln != listLast(l))
+            output = sdscat(output,"|");
     }
-    output = sdstrim(output,"|");
     output = sdscat(output,"]");
     return output;
 }