Sometimes the given argument is internally altered and another filename is used
without a note to the operator. Even worse, a given .ring.gz filename is
sometimes written out as builder file, without updating the corresponding
.builder file.
There is already a method to parse the given argv and return the name of the
builder and ring file. However, it's rarely used and no warning is given to the
user if it is altered. This patch uses the already parsed builder and ring file
name instead of argv[1], and also adds a note to the user if the used filename
is differently to the one given as argument.
Closes-Bug: 1482096
Change-Id: I2f8ef23aeab8b07caaa799f7dcd57e684b4b2ad2
eeb0fa40a1