fix shellcheck warnings

8 years ago · 7af784adce
1 changed files with 1 additions and 1 deletions
--- a/acme.sh
+++ b/acme.sh
@ -548,7 +548,7 @@ _createkey() {
 _is_idn() {
  _is_idn_d="$1"
  _debug2 _is_idn_d "$_is_idn_d"
-  _idn_temp=$(printf "%s" "$_is_idn_d" | tr -d '[0-9]' | tr -d '[a-z]' | tr -d 'A-Z' | tr -d '.,-')
+  _idn_temp=$(printf "%s" "$_is_idn_d" | tr -d '0-9' | tr -d 'a-z' | tr -d 'A-Z' | tr -d '.,-')
  _debug2 _idn_temp "$_idn_temp"
  [ "$_idn_temp" ]
 }