Update IKEv2 script

- Update client config file generation code due to a recent change
  on Ubuntu 20.04: The libnss3 package was recently updated to
  version 3.98 on Ubuntu 20.04, which requires these changes to the
  IKEv2 script.
  Ref: https://packages.ubuntu.com/focal/libnss3

Author: hwdsl2

extras/ikev2setup.sh

@@ -157,7 +157,7 @@ confirm_or_abort() {
 show_header() {
 cat <<'EOF'
 
-IKEv2 Script   Copyright (c) 2020-2024 Lin Song   3 Feb 2024
+IKEv2 Script   Copyright (c) 2020-2024 Lin Song   10 Apr 2024
 
 EOF
 }
@@ -820,7 +820,7 @@ export_p12_file() {
         -legacy -name "$client_name" -passin "pass:$p12_password" -passout pass: || exit 1
     fi
     /bin/rm -f "$pem_file"
-  elif [ "$os_type" = "alpine" ] || [ "$os_ver" = "kalirolling" ] || [ "$os_type$os_ver" = "ubuntu11" ]; then
+  elif [ "$os_type" = "alpine" ] || [ "$os_ver" = "kalirolling" ] || [ "$os_ver" = "bullseyesid" ]; then
     pem_file="$export_dir$client_name.temp.pem"
     openssl pkcs12 -in "$p12_file_enc" -out "$pem_file" -passin "pass:$p12_password" -passout "pass:$p12_password" || exit 1
     openssl pkcs12 -keypbe PBE-SHA1-3DES -certpbe PBE-SHA1-3DES -export -in "$pem_file" -out "$p12_file_enc" \