Fix style issues

dnsapi/dns_leaseweb.sh

@@ -109,7 +109,7 @@ _lsw_api() {
   export _H2="Content-Type: application/json"
   export _H1="X-Lsw-Auth: ${LSW_Key}"
 
-  if [ "$cmd" == "POST" ]; then
+  if [ "$cmd" = "POST" ]; then
     data="{\"name\": \"$fulldomain.\",\"type\": \"TXT\",\"content\": [\"$txtvalue\"],\"ttl\": 60}"
     response="$(_post "$data" "$LSW_API/$domain/resourceRecordSets" "$data" "POST")"   
     _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
@@ -118,7 +118,7 @@ _lsw_api() {
     return 0
   fi
 
-  if [ "$cmd" == "DELETE" ]; then
+  if [ "$cmd" = "DELETE" ]; then
     response="$(_post "" "$LSW_API/$domain/resourceRecordSets/$fulldomain/TXT" "" "DELETE")"
     _code="$(grep "^HTTP" "$HTTP_HEADER" | _tail_n 1 | cut -d " " -f 2 | tr -d "\\r\\n")"
     _debug "http response code $_code"