Better internal method name

Author: garydgregory

src/main/java/org/apache/commons/codec/net/PercentCodec.java

@@ -150,8 +150,8 @@ private byte[] doEncode(final byte[] bytes, final int expectedLength, final bool
                 if (bb < 0) {
                     bb = (byte) (256 + bb);
                 }
-                final char hex1 = Utils.hexDigit(bb >> 4);
-                final char hex2 = Utils.hexDigit(bb);
+                final char hex1 = Utils.hexChar(bb >> 4);
+                final char hex2 = Utils.hexChar(bb);
                 buffer.put(ESCAPE_CHAR);
                 buffer.put((byte) hex1);
                 buffer.put((byte) hex2);

src/main/java/org/apache/commons/codec/net/QuotedPrintableCodec.java

@@ -283,8 +283,8 @@ public static final byte[] encodeQuotedPrintable(BitSet printable, final byte[]
      */
     private static int encodeQuotedPrintable(final int b, final ByteArrayOutputStream buffer) {
         buffer.write(ESCAPE_CHAR);
-        final char hex1 = Utils.hexDigit(b >> 4);
-        final char hex2 = Utils.hexDigit(b);
+        final char hex1 = Utils.hexChar(b >> 4);
+        final char hex2 = Utils.hexChar(b);
         buffer.write(hex1);
         buffer.write(hex2);
         return 3;

src/main/java/org/apache/commons/codec/net/URLCodec.java

@@ -153,8 +153,8 @@ public static final byte[] encodeUrl(BitSet urlsafe, final byte[] bytes) {
                 buffer.write(b);
             } else {
                 buffer.write(ESCAPE_CHAR);
-                final char hex1 = Utils.hexDigit(b >> 4);
-                final char hex2 = Utils.hexDigit(b);
+                final char hex1 = Utils.hexChar(b >> 4);
+                final char hex2 = Utils.hexChar(b);
                 buffer.write(hex1);
                 buffer.write(hex2);
             }

src/main/java/org/apache/commons/codec/net/Utils.java

@@ -56,7 +56,7 @@ static int digit16(final byte b) throws DecoderException {
      * @param b the input int
      * @return the upper case hexadecimal digit of the lower 4 bits of the int.
      */
-    static char hexDigit(final int b) {
+    static char hexChar(final int b) {
         return Character.toUpperCase(Character.forDigit(b & 0xF, RADIX));
     }