Your bug report

#26586: 25.1; header-line-format spins cpu

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 26586@debbugs.gnu.org.

-- 
26586: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=26586
GNU Bug Tracking System
Contact help-debbugs@gnu.org with problems