documentation. It turns out some Lisp programs were using this
coding-system on the wrong assumption that the "auto" part means some
automagic handling of the end-of-line (EOL) format conversion; those
-program will now start to fail, because BOM signature in UTF-8 encoded
+programs will now start to fail, because BOM signature in UTF-8 encoded
text is rarely expected. That is the reason we mention this bugfix
here.
In buffers in which these display optimizations are in effect, the
'fontification-functions', 'pre-command-hook' and 'post-command-hook'
hooks are executed on a narrowed portion of the buffer, whose size is
-controlled by the options 'long-line-optimizations-region-size' and
+controlled by the variables 'long-line-optimizations-region-size' and
'long-line-optimizations-bol-search-limit', as if they were in a
'with-narrowing' form. This may, in particular, cause occasional
mis-fontifications in these buffers.