utils/watchcat: Fix some typos (mostly found by codespell)

Note that this implies an API change (allways -> always).
The wrong spelling "allways" is still accepted for backward compatibility.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

utils/watchcat/files/watchcat.sh

@@ -7,6 +7,9 @@
 
 mode="$1"
 
+# Fix potential typo in mode (backward compatibility).
+[ "$mode" = "allways" ] && mode="always"
+
 shutdown_now() {
 	local forcedelay="$1"
 
@@ -19,7 +22,7 @@ shutdown_now() {
 	}
 }
 
-watchcat_allways() {
+watchcat_always() {
 	local period="$1"; local forcedelay="$2"
 
 	sleep "$period" && shutdown_now "$forcedelay"
@@ -66,9 +69,9 @@ watchcat_ping() {
 	done
 }
 
-	if [ "$mode" = "allways" ]
+	if [ "$mode" = "always" ]
 	then
-		watchcat_allways "$2" "$3"
+		watchcat_always "$2" "$3"
 	else
 		watchcat_ping "$2" "$3" "$4" "$5"
 	fi