M shlide → shlide

@@ -46,11 +46,12 @@ printf '%b' "$dummy"
 }
 
 # Filter out color sequences.
-shopt -s extglob
 ansi_filter() {
+    shopt -s extglob
     local IFS=
     printf '%s' "${1//$'\e'[\[(]*([0-9;])[@-n]/}"
     #" A little fix to prevent vim syntax highlighting from breaking.
+    shopt -u extglob
 }