[ecasound] [PATCH] ecasound.el: fix regexp to match ewf files

Hi,

attached is a trivial patch that fixes the regexp inside ecasound.el which
matches *.ewf files. The patch basically replaces "$" with "\\'" to match an
end of string instead of a newline as per the example at [0].

Also, when bytecompiling it, I get:

> ecasound.el:974:1:Warning: !! The file uses old-style backquotes !!
> This functionality has been obsolete for more than 10 years already
> and will be removed soon. See (elisp)Backquote in the manual

Though, not being an elisp expert, I can't tell what needs to be fixed.

Cheers

[0] http://www.gnu.org/software/emacs/manual/html_node/elisp/Auto-Major-Mode.html

-- 
perl -E '$_=q;$/= @{[@_]};and s;\S+;<inidehG ordnasselA>;eg;say~~reverse'

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