The very last line on https://wiki.ubuntu.com/Unity/LauncherAPI says: "Capitalisation: In quicklists the first letter of each line should be capitalised e.g. "Keep in launcher". Names should also be capitalised, e.g. "Open Office".". And I can see that this line was indeed added by John Lea.
Applying the same rules from quicklists on tooltips seems a reasonable assumption, meaning that "Dash home" is correct capitalization.
That said one could argue that "Dash home" is an odd message for a tooltip. I read it with the same meaning as "run home in all haste" :-) So perhaps a different string there instead.
The very last line on https:/ /wiki.ubuntu. com/Unity/ LauncherAPI says: "Capitalisation: In quicklists the first letter of each line should be capitalised e.g. "Keep in launcher". Names should also be capitalised, e.g. "Open Office".". And I can see that this line was indeed added by John Lea.
Applying the same rules from quicklists on tooltips seems a reasonable assumption, meaning that "Dash home" is correct capitalization.
That said one could argue that "Dash home" is an odd message for a tooltip. I read it with the same meaning as "run home in all haste" :-) So perhaps a different string there instead.