A small fix for the type in the script

scripts/mysqld_safe.sh

@@ -49,7 +49,7 @@ parse_arguments() {
       # QQ The --open-files should be removed
       --open-files=*) open_files=`echo "$arg" | sed -e "s;--open-files=;;"` ;;
       --open-files-limit=*) open_files=`echo "$arg" | sed -e "s;--open-files-limit=;;"` ;;
-      --core-file-size=*) core_file_size=`echo "$arg" | sed -e "s;--core_file_size=;;"` ;;
+      --core-file-size=*) core_file_size=`echo "$arg" | sed -e "s;--core-file-size=;;"` ;;
       --timezone=*) TZ=`echo "$arg" | sed -e "s;--timezone=;;"` ; export TZ; ;;
       --mysqld=*)   MYSQLD=`echo "$arg" | sed -e "s;--mysqld=;;"` ;;
       --mysqld-version=*)