Fix return value in x509_print_rsa_pss_params error path

Change-Id: I7be2be148cb6a9c3a0ca37fca8124d62a1859889
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/94767
Auto-Submit: David Benjamin <davidben@google.com>
Commit-Queue: Xiangfei Ding <xfding@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Xiangfei Ding <xfding@google.com>

crypto/x509/rsa_pss.cc

diff --git a/crypto/x509/rsa_pss.cc b/crypto/x509/rsa_pss.cc
index c8ef4ee..4aa2123 100644
--- a/crypto/x509/rsa_pss.cc
+++ b/crypto/x509/rsa_pss.cc
@@ -147,7 +147,7 @@
   assert(OBJ_obj2nid(sigalg->algorithm) == NID_rsassaPss);
   rsa_pss_params_t params;
   if (!rsa_pss_decode(sigalg, &params)) {
-    return BIO_puts(bp, " (INVALID PSS PARAMETERS)\n") <= 0;
+    return BIO_puts(bp, " (INVALID PSS PARAMETERS)\n") > 0;
   }
 
   const char *hash_str = nullptr;