Merge pull request #349 from toonsevrin/patch-6

small print.hpp doc fix

contracts/eoslib/print.hpp

@@ -143,7 +143,7 @@ namespace eos {
     *
     *  Example:
     *  @code
-    *  char const *s = "Hello World!";
+    *  const char *s = "Hello World!";
     *  uint64_t unsigned_64_bit_int = 1e+18;
     *  uint128_t unsigned_128_bit_int (87654323456);
     *  uint64_t string_as_unsigned_64_bit = N(abcde);