messages: Initialization of member variables

messages: Initialization of member variables

Fixes the coverity issues:

** 717271 Uninitialized scalar field
2. uninit_member: Non-static class member from_mds is not initialized
 in this constructor nor in any functions that it calls.
4. uninit_member: Non-static class member dir_rep is not initialized
 in this constructor nor in any functions that it calls.
CID 717271 (#1 of 1): Uninitialized scalar field (UNINIT_CTOR)
6. uninit_member: Non-static class member discover is not initialized
 in this constructor nor in any functions that it calls.

** 717272 Uninitialized scalar field
2. uninit_member: Non-static class member want_base_dir is not initialized
in this constructor nor in any functions that it calls.
CID 717272 (#1 of 1): Uninitialized scalar field (UNINIT_CTOR)
4. uninit_member: Non-static class member want_xlocked is not initialized
in this constructor nor in any functions that it calls.

** 717274 Uninitialized scalar field
2. uninit_member: Non-static class member wanted_base_dir is not initialized
 in this constructor nor in any functions that it calls.
4. uninit_member: Non-static class member wanted_xlocked is not initialized
 in this constructor nor in any functions that it calls.
6. uninit_member: Non-static class member flag_error_dn is not initialized
 in this constructor nor in any functions that it calls.
8. uninit_member: Non-static class member flag_error_dir is not initialized
 in this constructor nor in any functions that it calls.
10. uninit_member: Non-static class member unsolicited is not initialized
 in this constructor nor in any functions that it calls.
12. uninit_member: Non-static class member dir_auth_hint is not initialized
 in this constructor nor in any functions that it calls.
CID 717274 (#1 of 1): Uninitialized scalar field (UNINIT_CTOR)
14. uninit_member: Non-static class member starts_with is not initialized
in this constructor nor in any functions that it calls.

** 717275 Uninitialized scalar field
CID 717275 (#1 of 1): Uninitialized scalar field (UNINIT_CTOR)
2. uninit_member: Non-static class member from is not initialized in this
constructor nor in any functions that it calls.

Signed-off-by: Amit Kumar amitkuma@redhat.com