Add Checkstyle UnnecessaryParentheses

Author: garydgregory

src/conf/checkstyle.xml

@@ -84,6 +84,7 @@ limitations under the License.
     <module name="SuperClone" />
     <module name="SuperFinalize" />
     <module name="TypecastParenPad" />    
+    <module name="UnnecessaryParentheses" />
     <module name="UnusedImports" />
     <module name="UpperEll" />
     <module name="WhitespaceAfter" />

src/main/java/org/apache/commons/codec/language/Metaphone.java

@@ -262,7 +262,7 @@ public String metaphone(final String txt) {
                         code.append('K');
                         break;
                     }
-                    if (!isNextChar(local, n, 'H') || (n == 0 && wdsz >= 3 && isVowel(local, 2))) { // CH consonant -> K consonant
+                    if (!isNextChar(local, n, 'H') || n == 0 && wdsz >= 3 && isVowel(local, 2)) { // CH consonant -> K consonant
                         code.append('K');
                     } else {
                         code.append('X'); // CHvowel -> X