Fix up typo that's been copied around in several places.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4332 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/config.h.cmake.in b/config.h.cmake.in
index a2da3d2..18a5e1c 100644
--- a/config.h.cmake.in
+++ b/config.h.cmake.in
@@ -7,7 +7,7 @@
 #cmakedefine HAVE_VSNPRINTF
 #cmakedefine HAVE_OLD_GNUTLS
 #cmakedefine HAVE_GNUTLS_X509_CRT_PRINT
-#cmakedefine HAVE_GNUTLS_CRT_T
+#cmakedefine HAVE_GNUTLS_X509_CRT_T
 #cmakedefine HAVE_GNUTLS_DATUM_T
 #cmakedefine HAVE_GNUTLS_PK_ALGORITHM_T
 #cmakedefine HAVE_GNUTLS_SIGN_ALGORITHM_T