VariLC: Fix g++/clang++ warning

Initialization order determined by declaration order, so match it in
initialization list.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@13912 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
VariLC: Prevent a buffer overrun

Thanks to clang++ warning.

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@13913 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd