Sync #'truncate-string-to-width with GNU, add tests for it. lisp/ChangeLog addition: 2012-05-12 Aidan Kehoe <kehoea@parhasard.net> * subr.el: * subr.el (truncate-string-to-width): Sync with GNU's version, use its test suite in mule-tests.el. tests/ChangeLog addition: 2012-05-12 Aidan Kehoe <kehoea@parhasard.net> * automated/mule-tests.el: Test #'truncate-string-to-width, thank you Colin Walters.