Fixed the compile/logger test

Not only does ProblemStringFormats format problems (compilation
messages) slightly differently, but it uses `xsbti.Position#pointer`
rather than `xsbti.Position#offset` as the column number.

Prior to v1.10.1 of Zinc, `sbt.internal.inc.javac.JavaPosition`, a
concrete implementation of `Position`, set `pointer` to `None`
unconditionally, meaning that `ProblemStringFormats` didn't have access
to the line number. To fix this, I upgraded our version of Zinc to
v1.10.1 from v1.10.0.

Author: Jaden Peterson