kakoune: fix for busybox awk: use middle dot unicode character instead of unicode escape for nbsp

kakoune/.config/kak/scripts/filesymbolscmd.awk

@@ -1,5 +1,5 @@
 BEGIN {
-    n = split(ENVIRON["kak_text"], a, "\u00a0")
+    n = split(ENVIRON["kak_text"], a, "·")
     line = a[3]
     if (n == 3 && line ~ /^[0-9]+/) {
         pat = a[1]