lvm commands running with an invalid arguments causes a segfault.

Issue

• When running lvm commands with an invalid object/argument name causes a segfault instead of only throwing an error message.

$ lvs '#'
Volume group name "#" has invalid characters.
Segmentation fault (core dumped)

$ vgremove foo[
Volume group name "foo[" has invalid characters.
Segmentation fault (core dumped)