Quoting fixes in ERC and Eshell

Quoting fixes in ERC and Eshell

* lisp/erc/erc-autoaway.el (erc-autoaway-set-away):
* lisp/erc/erc-backend.el (define-erc-response-handler):
* lisp/erc/erc-fill.el (erc-fill-static-center):
* lisp/eshell/em-dirs.el (eshell-save-some-last-dir):
* lisp/eshell/em-glob.el (eshell-glob-entries):
* lisp/eshell/em-hist.el (eshell-save-some-history):
* lisp/eshell/em-unix.el (eshell-remove-entries, eshell/rm)
(eshell-shuffle-files):
* lisp/eshell/esh-cmd.el (eshell-do-eval):
* lisp/eshell/esh-proc.el (eshell-process-interact)
(eshell-query-kill-processes):
Respect ‘text-quoting-style’ in diagnostics and doc strings.