Update entrypoint.sh

entrypoint.sh

@@ -37,7 +37,7 @@ if [[ ! -z ${FILES} ]]; then
   echo "Formating extensions..."
   EXPECTED_EXTENSIONS=".($(printf $(echo ${EXTENSIONS} | sed 's| ||g' | sed 's/,/|/g')))$"
   echo "Filtering files with ${EXPECTED_EXTENSIONS}..."
-  CHANGED_FILES=$(printf $(echo ${FILES} | sed 's| |\\n|g') | grep -E "${EXPECTED_EXTENSIONS}")
+  CHANGED_FILES=$(eval `printf $(echo ${FILES} | sed 's| |\\n|g') | grep -E "${EXPECTED_EXTENSIONS}"`)
   if [[ -z ${CHANGED_FILES} ]]; then
     echo "Skipping: No files to lint"
     exit 0;