sample outputのtitle中にinputって含まれてたら警告する処理を入れてるけどもうちょっと賢くする

[kmyk]

例:

$ oj dl https://beta.atcoder.jp/contests/utpc2012/tasks/utpc2012_01
[x] problem recognized: <onlinejudge.atcoder.AtCoderProblem object at 0x7f166d5d1b38>: https://beta.atcoder.jp/contests/utpc2012/tasks/utpc2012_01
[*] load cookie from: /home/user/.local/share/onlinejudge/cookie.jar
[x] GET: http://utpc2012.contest.atcoder.jp/tasks/utpc2012_01
[x] 200 OK
[!] strange name for output string: 入力例 1 に対する出力例
[!] strange name for output string: 入力例 2 に対する出力例
[!] strange name for output string: 入力例 3 に対する出力例
[*] save cookie to: /home/user/.local/share/onlinejudge/cookie.jar

[*] sample 0
[x] input: 入力例 1
2012/12/02
[+] saved to: test/sample-1.in
[x] output: 入力例 1 に対する出力例
yes
[+] saved to: test/sample-1.out

[*] sample 1
[x] input: 入力例 2
1000/01/01
[+] saved to: test/sample-2.in
[x] output: 入力例 2 に対する出力例
no
[+] saved to: test/sample-2.out

[*] sample 2
[x] input: 入力例 3
9999/12/31
[+] saved to: test/sample-3.in
[x] output: 入力例 3 に対する出力例
no
[+] saved to: test/sample-3.out