diff --git a/configure b/configure
index 6edfe570f0f7a3351d6f31bb3ae90134f0c06475..e3f109b06c5dfd14bd9d29e3960299f56ad85906 100755
--- a/configure
+++ b/configure
@@ -1488,7 +1488,7 @@ die_unknown(){
 show_list() {
     suffix=_$1
     shift
-    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
+    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
     exit 0
 }