Make comment read slightly better

Author: TheShermanTanker

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/IPreprocessorDirective.java

@@ -100,9 +100,8 @@ public interface IPreprocessorDirective {
 	public static final int ppImport = 12;
 
 	/**
-	 * Standard preprocessor directive <code>#warning</code>.
+	 * C23 and C++23 preprocessor directive <code>#warning</code>.
 	 * Similar to <code>#error</code>.
-	 * Introduced in C23 and C++23.
 	 */
 	public static final int ppWarning = 13;