change in syntax handling

[Jason Stover]

I used to run this syntax to test the code in src/math/ via glm.q:

data list / v0 to v2 1-33 (10).
begin data.
 0.65377128  7.735648 -23.97588
-0.13087553  6.142625 -19.63854
 0.34880368  7.651430 -25.26557
 0.69249021  6.125125 -16.57090
-0.07368178  8.245789 -25.80001
-0.34404919  6.031540 -17.56743
 0.75981559  9.832291 -28.35977
-0.46958313  5.343832 -16.79548
-0.06108490  8.838262 -29.25689
 0.56154863  6.200189 -18.58219
end data.
list.
glm v0 /by=v1 v2.

Now I get "error: GLM: Syntax error expecting end of command at `BY'."

Did something change to cause the error in this syntax?

-Jason