[gtk-doc] gtkdocize: fix the configure grepping even more

[Stefan Kost <stefkost src gnome org>]

commit 4785ec844c09f3e74011804c2ba4d93602aa1501
Author: Stefan Kost <ensonic users sf net>
Date:   Wed Jan 6 23:09:04 2010 +0200

    gtkdocize: fix the configure grepping even more
    
    Using backticks in the if was nonsense and swallowed the grep result. We also
    don't want to show anything on stdout.

 gtkdocize.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtkdocize.in b/gtkdocize.in
index c7eeefd..36837bc 100644
--- a/gtkdocize.in
+++ b/gtkdocize.in
@@ -37,7 +37,7 @@ if test $no_configure_found -eq 0; then
   if test $? -eq 0; then
     # GTK_DOC_CHECK([1.14],[--flavour no-tmpl])
     params=`echo $macro | sed -e 's/^GTK_DOC_CHECK(\ *\(.*\))/\1/'`
-    if `echo $params | grep '^.*\,\ *\[\{0,1\}'`; then
+    if echo $params | grep -q '^.*\,\ *\[\{0,1\}'; then
       extra_options=`echo $params | sed -e 's/^.*\,\ *\[\{0,1\}\([^]]*\)\]\{0,1\}\ *$/\1/'`
       #echo >&2 "DEBUG: adding extra options [$extra_options] to [$*]"
       set - $* $GTKDOCIZE_FLAGS $extra_options