Fix variable name for HLS-33
Fix variable name for HLS-33

--- a/HLS-Stream-Creator.sh
+++ b/HLS-Stream-Creator.sh
@@ -406,7 +406,7 @@
 command -v ggrep >/dev/null 2>&1
 if [ "$?" == "0" ]
 then
-    SED="ggrep"
+    GREP="ggrep"
 fi