Invokes GLIMPSE2_ligate once. The input list must contain exactly one
existing absolute VCF/BCF path per line in chromosome order. Blank lines and
surrounding whitespace are rejected because the native reader treats them
as part of a path.
Usage
rglimpse2_ligate(
input_list,
output_bcf,
executable,
seed,
threads = 1L,
log = character()
)