nad: add default case to all switch statements

Author: rdmark

bin/nad/nad_find.c

@@ -201,12 +201,10 @@ int ad_find(int argc, char **argv, AFPObj *obj)
             srchvol = strdup(optarg);
             break;
 
-        case ':':
-        case '?':
+        default:
             usage_find();
             free((void *)srchvol);
             exit(1);
-            break;
         }
     }
 

bin/nad/nad_ls.c

@@ -697,8 +697,7 @@ int ad_ls(int argc, char **argv, AFPObj *obj)
             ls_u = 1;
             break;
 
-        case ':':
-        case '?':
+        default:
             usage_ls();
             return -1;
             break;

bin/nad/nad_set.c

@@ -339,8 +339,7 @@ int ad_set(int argc, char **argv, AFPObj *obj)
             new_attributes = strdup(optarg);
             break;
 
-        case ':':
-        case '?':
+        default:
             usage_set();
             return -1;
             break;