strconv: add a test case when base is illegal
Increase unit test coverage of strconv/itoa.go from 83.8% to 85%
Change-Id: I0abdfc70a3f06251106f229c12ffb105eeb43fc8
GitHub-Last-Rev:
da9755368b5db41123c8f945fecedd135e9f894a
GitHub-Pull-Request: golang/go#55014
Reviewed-on: https://go-review.googlesource.com/c/go/+/430137
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Jenny Rakoczy <jenny@golang.org>
Reviewed-by: Jenny Rakoczy <jenny@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Auto-Submit: Jenny Rakoczy <jenny@golang.org>