Fix usage string of ssl_client2
Found by Hannes Mehnert
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 1573b8f..11af906 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -347,7 +347,7 @@
" nbio=%%d default: 0 (blocking I/O)\n" \
" options: 1 (non-blocking), 2 (added delays)\n" \
"\n" \
- " auth_mode=%%s default: \"optional\"\n" \
+ " auth_mode=%%s default: \"required\"\n" \
" options: none, optional, required\n" \
USAGE_IO \
"\n" \
@@ -372,8 +372,6 @@
" arc4=%%d default: 0 (disabled)\n" \
" force_version=%%s default: \"\" (none)\n" \
" options: ssl3, tls1, tls1_1, tls1_2\n" \
- " auth_mode=%%s default: \"required\"\n" \
- " options: none, optional, required\n" \
"\n" \
" force_ciphersuite=<name> default: all enabled\n"\
" acceptable ciphersuite names:\n"