RFR 8179369: src/java.security.jgss/share/classes/org/ietf/jgss/package.html should be HTML5-friendly

[Weijun Wang]

Please review this small doc change:

diff --git 
a/src/java.security.jgss/share/classes/org/ietf/jgss/package.html 
b/src/java.security.jgss/share/classes/org/ietf/jgss/package.html
--- a/src/java.security.jgss/share/classes/org/ietf/jgss/package.html
+++ b/src/java.security.jgss/share/classes/org/ietf/jgss/package.html
@@ -57,8 +57,7 @@
      produces tokens that the application must somehow transport to the
      other end.

-<h3>Credential Acquisition</h3>
-<a name=useSubjectCredsOnly></a>
+<h3 id=useSubjectCredsOnly>Credential Acquisition</h3>
      The GSS-API itself does not dictate how an underlying mechanism
      obtains the credentials that are needed for authentication. It is
      assumed that prior to calling the GSS-API, these credentials are

Thanks
Max