Loop in ALTMOV incorrectly processed

[anders9ustafsson]

Reported by Ulrich Römer, Karlsruhe Institute of Technology:

I believe there is a bug in line 1308 (in subroutine ALTMOV).
It states

for (var i = 1; i >= n; ++i)

whereas I believe it should be

for (var i = 1; i <= n; ++i)

for the loop to run more than one time.
Please check this line (and please let me know).