Your bug report

#15616: 24.3; Setting lexical-binding in file's local variables block should trigger a warning

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 15616@debbugs.gnu.org.

-- 
15616: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15616
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