minor doc fix

[Frederik Fouvry]

Symptoms:

Quotes were added around a function name and a variable name.

Index: lisp/mail/sendmail.el
===================================================================
RCS file: /cvsroot/emacs/emacs/lisp/mail/sendmail.el,v
retrieving revision 1.288
diff -c -r1.288 sendmail.el
*** lisp/mail/sendmail.el       9 Aug 2005 02:57:30 -0000       1.288
--- lisp/mail/sendmail.el       26 Aug 2005 13:05:56 -0000
***************
*** 886,894 ****
    "Default coding system for encoding the outgoing mail.
  This variable is used only when `sendmail-coding-system' is nil.
  
! This variable is set/changed by the command set-language-environment.
  User should not set this variable manually,
! instead use sendmail-coding-system to get a constant encoding
  of outgoing mails regardless of the current language environment.
  See also the function `select-message-coding-system'.")
  
--- 886,894 ----
    "Default coding system for encoding the outgoing mail.
  This variable is used only when `sendmail-coding-system' is nil.
  
! This variable is set/changed by the command `set-language-environment'.
  User should not set this variable manually,
! instead use `sendmail-coding-system' to get a constant encoding
  of outgoing mails regardless of the current language environment.
  See also the function `select-message-coding-system'.")
  

In GNU Emacs 22.0.50.11 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2005-08-26 on cc.at.coli.uni-sb.de
X server distributor `The XFree86 Project, Inc', version 11.0.40201000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: POSIX
  value of $LC_CTYPE: en_GB.ISO8859-15
  value of $LC_MESSAGES: en_GB.ISO8859-15
  value of $LC_MONETARY: address@hidden
  value of $LC_NUMERIC: en_GB.ISO8859-15
  value of $LC_TIME: en_GB.ISO8859-15
  value of $LANG: en_GB.ISO8859-15
  locale-coding-system: iso-8859-15
  default-enable-multibyte-characters: t