Resync ssh-keygen -W error message with upstream.

diff --git a/ssh-keygen.c b/ssh-keygen.c
index bf7ade952d9b97d18107920fb4388c2795222aa0..2a7939bfc6c0363cb2a4ba30fd3277e0d426bfca 100644 (file)
--- a/ssh-keygen.c
+++ b/ssh-keygen.c
@@ -2485,9 +2485,9 @@ main(int argc, char **argv)
                case 'W':
                        generator_wanted = (u_int32_t)strtonum(optarg, 1,
                            UINT_MAX, &errstr);
-                       if (errstr)
-                               fatal("Desired generator has bad value: %s (%s)",
-                                       optarg, errstr);
+                       if (errstr != NULL)
+                               fatal("Desired generator invalid: %s (%s)",
+                                   optarg, errstr);
                        break;
 #endif /* WITH_OPENSSL */
                case '?':