Remove spurious tabs from source.

caca/transform.c

@@ -740,7 +740,7 @@ static uint32_t flipchar(uint32_t ch)
          0x230a, 0x230b, /* ⌊ ⌋ */
          0x230c, 0x230d, /* ⌌ ⌍ */
          0x230e, 0x230f, /* ⌎ ⌏ */
-         0x231c, 0x231d, /* ⌜ ⌝	*/
+         0x231c, 0x231d, /* ⌜ ⌝ */
          0x231e, 0x231f, /* ⌞ ⌟ */
          0x2326, 0x232b, /* ⌦ ⌫ */
          0x2329, 0x232a, /* 〈 〉 */