Fix link to Mozilla wiki in comment

They changed the URL from : to / without leaving a redirect.

Change-Id: I3b2c9fe8f2ffbbb3d6e29d99b5c769b02ba6fc0e
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/75767
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Auto-Submit: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
diff --git a/pki/verify_certificate_chain.cc b/pki/verify_certificate_chain.cc
index e72915f..e26a104 100644
--- a/pki/verify_certificate_chain.cc
+++ b/pki/verify_certificate_chain.cc
@@ -1088,7 +1088,7 @@
   // The key purpose is checked not just for the end-entity certificate, but
   // also interpreted as a constraint when it appears in intermediates. This
   // goes beyond what RFC 5280 describes, but is the de-facto standard. See
-  // https://wiki.mozilla.org/CA:CertificatePolicyV2.1#Frequently_Asked_Questions
+  // https://wiki.mozilla.org/CA/CertificatePolicyV2.1#Frequently_Asked_Questions
   VerifyExtendedKeyUsage(cert, required_key_purpose, errors, is_target_cert,
                          is_target_cert_issuer);
 }