Bug#186139: gcc-3.2: [alpha] va_start is off by one

[Kalle Olavi Niemitalo]

I tested newer versions of gcc-3.2 and gcc-snapshot.

gcc-2.95     2.95.4-17   buggy, won't be fixed
gcc-3.0      3.0.4-7     buggy, removed from unstable
gcc-3.2      3.2.3-0pre8 buggy
gcc-3.3      3.3-0pre2   fixed
gcc-snapshot 20030410-1  fixed, unlike 20030314-1