Michael J Gruber [off-list ref] writes:
Well, even in the simple case one has to wonder: Why does the user
invoke help for "co"? There are two very likely cases:
A) User does not remember what "co" is aliased to.
B) User wants to see the man page.
If A is not the case then it's easy for the user to request help for
"checkout" (or "commit" or ...).
Removing the only easy way to look up the definition of an alias is a
major regression.
Very well said ;-).