e4defrag: fix GCC7.x compiler warning

../../misc/e4defrag.c:1821:8: warning: statement will never be executed
[-Wswitch-unreachable]
    int mount_dir_len = 0;

Also fix a typo in a few comments.

Signed-off-by: Marc Thomas <marc@dragonfly.plus.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
1 file changed