Update check_headers.sh

Author: rbanka1

scripts/check_license/check_headers.sh

@@ -152,7 +152,7 @@ s/.*Copyright (C) \([0-9]\+\).*/\1/' "$src_path")
     	        if [[ $HEADER_LAST -eq $COMMIT_LAST ]]; then
     	            continue
     	        else
-					NEW="$HEADER_FIRST-$COMMIT_LAST"
+		    NEW="$HEADER_FIRST-$COMMIT_LAST"
     	            if [[ ${UPDATE_DATES} -eq 1 ]]; then
     	                echo "Updating copyright date in $src_path: $YEARS -> $NEW"
     	                sed -i "s/Copyright (C) ${YEARS}/Copyright (C) ${NEW}/g" "${src_path}"