Rename mke2fs.conf to mke2fs.conf.in, so that the makefile can choose
to use either mke2fs.conf.in or mke2fs.conf.custom.in (if it is
present). If there is custom configuration file, it's likely that it
is very different from the upstream mke2fs.conf.in, so by having the
separate mke2fs.conf.custom.in file, it minimizes merge conflicts if
the upstream mke2fs.conf file changes.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Theodore Ts'o