[dasil003]

Sorry, but your opinion is wrong and harmful. The point of the summary line is a succinct and scannable summary of the commit.

Open up any git GUI; gitk or SourceTree are my two favorite. If you keep your summary lines under 50 characters you can quickly scan a maximal number of commits. Detailed descriptions are great and should be included as well for any substantial commits, but that is not what you want in the summary. That should be added in separate paragraphs after the summary line.

This is not arbitrary, and it has nothing to do with the ability to line wrap, it's about efficient communication faced with a history of tens or hundreds of thousands of commits over time.