NewChangeHtml.soy: Migrate usages of `or` to `||`

This file was missed by change Ied3c23986.

Release-Notes: skip
Change-Id: I2743351a75e80a87ef1795a6062dcd666cc0ca1f
Signed-off-by: Edwin Kempin <ekempin@google.com>

resources/com/google/gerrit/server/mail/NewChangeHtml.soy

diff --git a/resources/com/google/gerrit/server/mail/NewChangeHtml.soy b/resources/com/google/gerrit/server/mail/NewChangeHtml.soy
index 008226f..fac3c3d 100644
--- a/resources/com/google/gerrit/server/mail/NewChangeHtml.soy
+++ b/resources/com/google/gerrit/server/mail/NewChangeHtml.soy
@@ -26,7 +26,7 @@
   {@param patchSet: ?}
   {@param projectName: ?}
   <p>
-    {if $email.reviewerNames or $email.removedReviewerNames}
+    {if $email.reviewerNames || $email.removedReviewerNames}
       {if $email.reviewerNames}
         {$fromName} would like{sp}
         {for $reviewerName, $index in $email.reviewerNames}