Fix method signatures

Author: Horcrux7

src/com/inet/lib/less/LessLookAheadReader.java

@@ -296,7 +296,7 @@ boolean nextIsMixinParam( boolean isBlock ) {
      * @throws LessException
      *             If an I/O error occurs or EOF
      */
-    char read() {
+    char read() throws LessException {
         try {
             if( cachePos < cache.length() ) {
                 return incLineColumn( cache.charAt( cachePos++ ) );

src/com/inet/lib/less/LessParser.java

@@ -1226,7 +1226,7 @@ private boolean comment( FormattableContainer container ) {
      * @throws LessException
      *             If an I/O error occurs or EOF
      */
-    private char read() {
+    private char read() throws LessException {
         return reader.read();
     }