NEWS: fix markup of CONSTANTS_WITH_UNDERSCORES

Alas, I did not notice when when I originally applied the NEWS patch

diff --git a/NEWS b/NEWS
index f6ecbc7635096089516611e7513c125d7640ee40..0fd6d724ffec39092de582a1382bcbcee1285002 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -62,7 +62,7 @@ Add support for `notmuch_threads_t` and `notmuch_thread_t`
 Fixed constant values so they are not all zero anymore.
 
   Previously, it was impossible to open writable database handles,
 Fixed constant values so they are not all zero anymore.
 
   Previously, it was impossible to open writable database handles,

-  because DATABASE_MODE_READ_ONLY and DATABASE_MODE_READ_WRITE were
+  because `DATABASE_MODE_READ_ONLY` and `DATABASE_MODE_READ_WRITE` were

   both set to zero.
   The same issue occured with sort modes.
 
   both set to zero.
   The same issue occured with sort modes.