clearer Call Function example

[積丹尼 Dan Jacobson]

In (info "(make) Call Function")

One would assume

     reverse = $(2) $(1)

     foo = $(call reverse,a,b)

should be

     reverse = $(2) $(1)

     foo = $(call $(reverse),a,b)

but make does that $ stuff for us automatically,
which makes us think maybe it is also doing the same for a and b.

But it's not.

Therefore perhaps use:

reverse = $(2) $(1)
a=x
b=y
foo = $(call reverse,$a,$b)...

to pound this fact home.

Yes even if in the following example on the page finally makes this clearer.