rc.xml.all: replace "" with "default" in libinput device category

As empty string there is not matched as how it was expected.

diff --git a/docs/rc.xml.all b/docs/rc.xml.all
index ddd9236ac7d7f08146dc5bd9c5356e18d625c061..c4c1ef31379624036e56173ffe385b56a1dedc92 100644 (file)
--- a/docs/rc.xml.all
+++ b/docs/rc.xml.all
@@ -421,7 +421,7 @@
       - tapButtonMap [lrm|lmr]
   -->
   <libinput>
-    <device category="">
+    <device category="default">
       <naturalScroll></naturalScroll>
       <leftHanded></leftHanded>
       <pointerSpeed></pointerSpeed>