session restore (s r) crash

[doremiyeon]

nnn/src/nnn.c

Line 4546 in 5e5a17f

xstrsncpy(curssn, sname, NAME_MAX);

when attempting to restore a session by hitting 's r', sname is NULL here. should probably check for that and write @\0 to curssn.

[jarun]

Raise a PR please.

[doremiyeon]

#1969 here you go, sorry.