Reserve space for the trailing null byte in the srvname member of struct smb_vc_info.
Reserve space for the trailing null byte in the srvname member of
struct smb_vc_info.

PR:		46902

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase