Fix documentation typo

A missing pipe character caused a method name to not be linked.

Change-Id: I870e1beda63d67371151a8d6bb6db7d1ddfa6ab7
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/80827
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Auto-Submit: Lily Chen <chlily@google.com>

include/openssl/ssl.h

diff --git a/include/openssl/ssl.h b/include/openssl/ssl.h
index 6d72829..7fd857e 100644
--- a/include/openssl/ssl.h
+++ b/include/openssl/ssl.h
@@ -3057,7 +3057,7 @@
 // issuer of the final certificate in |cred|'s certificate chain.
 //
 // Additionally, |cred| must enable issuer matching (see
-// SSL_CREDENTIAL_set_must_match_issuer|) for this value to take effect.
+// |SSL_CREDENTIAL_set_must_match_issuer|) for this value to take effect.
 //
 // For better extensibility, callers are recommended to configure this
 // information with a CertificatePropertyList instead. See