Un-silence one too many greps.

diff --git a/configure b/configure
index f6587cef3f8ac27fa50ec0965c7de888bb1c545e..f642752f9cedfa0a9fa600154ae980ffdaa1546d 100755 (executable)
--- a/configure
+++ b/configure
@@ -390,7 +390,7 @@ fi
 
 if [ ! -z "$CFG_PERF" ]
 then
-    HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep -q 'unknown option'`
+    HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
     if [ -z "$HAVE_PERF_LOGFD" ];
     then
         CFG_PERF_WITH_LOGFD=1