minor refactor: fix read(char[], int, int) loop bound in LineColumnReader (secondary fix)

Author: paulk-asert

src/main/java/groovy/io/LineColumnReader.java

@@ -192,7 +192,7 @@ public long skip(long toSkip) throws IOException {
      */
     @Override
     public int read(char[] chars) throws IOException {
-        return read(chars, 0, chars.length - 1);
+        return read(chars, 0, chars.length);
     }
 
     /**