I had a testsc run fail because of alignment-dependent control flow
divergence in a glibc function with 'memmove' in the name, which
appears to have been an accident of different memory allocation
between two runs of the test in question.
sclog was already giving special handling to memset for the same
reason, so it's no trouble to add memmove to the same list of
functions that are treated as an opaque primitive for logging
purposes.
1c78d18acb