fix typo in error message

[phaer]

The error message in PtyReplSessions Drop impl implies that the subprocess is "bash", which isn't necessarily true and might confuse users.

[phaer]

Hm...not sure if this test failure is related to my current PR? I can try to install that rust version to try and reproduce if needed.

[petreeftime]

The gitlint check fails.

1: CC1 Body does not contain a 'Signed-off-by' line

This can be fixed by signing the commit with git commit --amend -s

[phaer]

Thanks, I meant the failing rust test on rust 1.60, but you are right I hadn't signed as well. Let's see if it works now. Signed my other PR as well ;)

[petreeftime]

bors merge

[bors[bot]]

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