use UTF-8 as default encoding in the Terminal (#1020)

the rest of Eclipse now uses UTF-8 as default encoding.

The tm.terminal code reverts to null when the encoding
begins with "Default" and this leads to UTF-8 being
selected from Charset.defaultEncoding instead of ISO-8859
when the displayed default value is selected.

Co-authored-by: Philipp SALZGEBER <[email protected]>

Author: astrograph

terminal/plugins/org.eclipse.tm.terminal.control/about.properties

@@ -1,5 +1,5 @@
 ###############################################################################
-# Copyright (c) 2018, 2024 Contributors to the Eclipse Foundation
+# Copyright (c) 2018, 2025 Contributors to the Eclipse Foundation
 #
 # See the NOTICE file(s) distributed with this work for additional
 # information regarding copyright ownership.
@@ -24,7 +24,7 @@ blurb=TM Terminal Control\n\
 Version: {featureVersion}\n\
 Build id: {0}\n\
 \n\
-Copyright (c) 2018, 2024 Contributors to the Eclipse Foundation
+Copyright (c) 2018, 2025 Contributors to the Eclipse Foundation
 \n\
 See the NOTICE file(s) distributed with this work for additional\n\
 information regarding copyright ownership.\n\

terminal/plugins/org.eclipse.tm.terminal.control/src/org/eclipse/tm/internal/terminal/emulator/VT100Emulator.java

@@ -1210,7 +1210,7 @@ private void processAnsiCommand_n() {
 		}
 
 		try {
-			terminal.getOutputStream().write(reply.getBytes("ISO-8859-1")); //$NON-NLS-1$
+			terminal.getOutputStream().write(reply.getBytes("UTF-8")); //$NON-NLS-1$
 			terminal.getOutputStream().flush();
 		} catch (IOException ex) {
 			Logger.log("Caught IOException!"); //$NON-NLS-1$