Use PACKAGE_NAME in messages rather than hardcoding "Bitcoin Core"

src/qt/forms/optionsdialog.ui

@@ -286,7 +286,7 @@
             <item>
              <widget class="QLineEdit" name="externalSignerPath">
               <property name="toolTip">
-               <string>Full path to a Bitcoin Core compatible script (e.g. C:\Downloads\hwi.exe or /Users/you/Downloads/hwi.py). Beware: malware can steal your coins!</string>
+               <string>Full path to a %1 compatible script (e.g. C:\Downloads\hwi.exe or /Users/you/Downloads/hwi.py). Beware: malware can steal your coins!</string>
               </property>
              </widget>
             </item>

src/qt/optionsdialog.cpp

@@ -91,7 +91,9 @@ OptionsDialog::OptionsDialog(QWidget *parent, bool enableWallet) :
         ui->thirdPartyTxUrls->setVisible(false);
     }
 
-#ifndef ENABLE_EXTERNAL_SIGNER
+#ifdef ENABLE_EXTERNAL_SIGNER
+    ui->externalSignerPath->setToolTip(ui->externalSignerPath->toolTip().arg(PACKAGE_NAME));
+#else
     //: "External signing" means using devices such as hardware wallets.
     ui->externalSignerPath->setToolTip(tr("Compiled without external signing support (required for external signing)"));
     ui->externalSignerPath->setEnabled(false);