Limit first line of the commit message to 72 characters

[dzenanz]

Currently, a 78-character limit is enforced by pre-commit infrastructure. I think it would be good to reduce this to 72, to play better with GitHub's limit of 72, thus avoiding truncation of displayed PR messages.

[thewtex]

78 is already quite a challenge. While it would be nice to avoid wrapping in the pull request subject on GitHub, a tradeoff in preference of a meaningful message is better in my opinion.

[seanm]

78 is already quite a challenge. While it would be nice to avoid wrapping in the pull request subject on GitHub, a tradeoff in preference of a meaningful message is better in my opinion.

+1 for me. Especially with the prefix ITK requires, I often find myself writing contorted commit summaries due to the tiny length allowed.

[dzenanz]

There is also the rest of the commit message 😄, as @jhlegarreta frequently points out. The first line doesn't have to be fully descriptive.