More shells cript fixes

README.md

@@ -30,7 +30,7 @@ It is recommended to pass all sensitive values through `secrets`
 
 ```yaml
 name: Copy single file
-uses: tempersama/rsync-action@2.2
+uses: tempersama/rsync-action@2.3
 with:
   host: ${{ secrets.host }}
   source: html/

entrypoint.sh

@@ -3,13 +3,14 @@
 set -e
 
 # Quick checks for missing parameters
-rc=0
-empty() { echo ERROR: $1 is empty }
+empty() {
+	echo "ERROR: $1 is empty"
+}
 
 [[ "$INPUT_HOST" ]]   		&& empty host
 [[ "$INPUT_SOURCE" ]] 		&& empty source
 [[ "$INPUT_DESTINATION" ]] 	&& empty destination
-[[ "$INPUT_USERNME" ]] 		&& empty username
+[[ "$INPUT_USERNAME" ]] 		&& empty username
 [[ "$INPUT_KEY" ]] 			&& empty key
 
 
@@ -21,6 +22,7 @@ chmod 400 key
 rsync \
 	-a -v \ --stats \
 	-e "ssh -o StrictHostKeyChecking=no -i key" \
-	--port $INPUT_PORT \
+	--port "$INPUT_PORT" \
 	"$INPUT_SOURCE" \
 	"$INPUT_USERNAME"@"$INPUT_HOST":"$INPUT_DESTINATION"
+