[PATCH] build: use gnulib's isblank module

[Jim Meyering]

I realized that with the recent change,

    cleanup: rely on gnulib's ctype.h functions; remove IS* macros and is_*
    62dd3a746d4559e3c841c53793d9460374a1bd59

I neglected to make grep use gnulib's isblank module.
That is necessary to ensure our use of 'isblank' is portable.
This fixes it:

>From fe2064088e5d45f621a79ea197c0eb17dceed940 Mon Sep 17 00:00:00 2001
From: Jim Meyering <address@hidden>
Date: Thu, 8 Apr 2010 20:58:26 +0200
Subject: [PATCH] build: use gnulib's isblank module

* bootstrap.conf (gnulib_modules): Use gnulib's isblank module,
now that we rely on the function by that name.
---
 bootstrap.conf |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/bootstrap.conf b/bootstrap.conf
index 54d4775..a836d5c 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -43,6 +43,7 @@ gnupload
 hard-locale
 ignore-value
 intprops
+isblank
 isdir
 lseek
 locale
--
1.7.1.rc0.239.g8b27e