Merge pull request #873 from fujiwat/patch-1

update print.doc  -- rounding in case of floating point

Author: per1234

Language/Functions/Communication/Serial/print.adoc

@@ -30,7 +30,7 @@ An optional second parameter specifies the base (format) to use; permitted value
 * `_Serial_.print(78, HEX)` gives "4E" +
 * `_Serial_.print(1.23456, 0)` gives "1" +
 * `_Serial_.print(1.23456, 2)` gives "1.23" +
-* `_Serial_.print(1.23456, 4)` gives "1.2345"
+* `_Serial_.print(1.23456, 4)` gives "1.2346"
 
 You can pass flash-memory based strings to `_Serial_.print()` by wrapping them with link:../../../../variables/utilities/progmem[F()]. For example: