bug#21064: Typo in (guile.info.gz)Keyword Read Syntax: `keyword' read option

[Glenn Michaels]

The following patch fixes a typo in the guile texinfo docs,
see https://bugs.debian.org/765286 for more info.

--- a/doc/ref/api-data.texi
+++ b/doc/ref/api-data.texi
@@ -5849,7 +5849,7 @@ of the form @code{:NAME} are read as symbols, as required 
by R5RS.
 
 @cindex SRFI-88 keyword syntax
 
-If the @code{keyword} read option is set to @code{'postfix}, Guile
+If the @code{keywords} read option is set to @code{'postfix}, Guile
 recognizes the SRFI-88 read syntax @code{NAME:} (@pxref{SRFI-88}).
 Otherwise, tokens of this form are read as symbols.