English-language typo in gettext.texi

[Paul Eggert]

Here's a proposed patch:

2006-10-19  Paul Eggert  <address@hidden>

        * gettext.texi (Mark Keywords): keyword are -> keyword is.

*** gettext.texi.~1.113.~       Thu Oct 19 15:16:59 2006
--- gettext.texi        Thu Oct 19 16:14:33 2006
*************** different instances that it is impractic
*** 1917,1923 ****
  
  This marking operation has two goals.  The first goal of marking
  is for triggering the retrieval of the translation, at run time.
! The keyword are possibly resolved into a routine able to dynamically
  return the proper translation, as far as possible or wanted, for the
  argument string.  Most localizable strings are found in executable
  positions, that is, attached to variables or given as parameters to
--- 1917,1923 ----
  
  This marking operation has two goals.  The first goal of marking
  is for triggering the retrieval of the translation, at run time.
! The keyword is possibly resolved into a routine able to dynamically
  return the proper translation, as far as possible or wanted, for the
  argument string.  Most localizable strings are found in executable
  positions, that is, attached to variables or given as parameters to