Changes to m4/doc/m4.texinfo,v [branch-1_4]

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Branch:         branch-1_4
Changes by:     Eric Blake <ericb>      06/07/13 22:09:54

Index: doc/m4.texinfo
===================================================================
RCS file: /sources/m4/m4/doc/m4.texinfo,v
retrieving revision 1.1.1.1.2.40
retrieving revision 1.1.1.1.2.41
diff -u -b -r1.1.1.1.2.40 -r1.1.1.1.2.41
--- doc/m4.texinfo      13 Jul 2006 21:16:41 -0000      1.1.1.1.2.40
+++ doc/m4.texinfo      13 Jul 2006 22:09:54 -0000      1.1.1.1.2.41
@@ -2445,7 +2445,12 @@
 
 You should note that using @code{changeword} will slow @code{m4} down
 by a factor of about seven, once it is changed to something other
-than the default regular expression.
+than the default regular expression.  You can invoke @code{changeword}
+with the empty string to restore the default word definition, and regain
+the parsing speed.
+
+The builtin macro @code{changeword} is recognized only when given
+arguments.
 
 @node M4wrap
 @section Saving input