Fix potential buffer overflow in Mod_LoadAliasFrame

e.g. frame #1 (`Extend Tentacles`) of `progs/tarbaby.mdl`
from LibreQuake (https://github.com/MissLavender-LQ/LibreQuake/blob/bbe8e5a0850600ba774a34d5ba58817c2fd460f6/lq1/progs/tarbaby.mdl)
doesn't contain a NUL terminator.

Quake/gl_model.c

@@ -2743,7 +2743,7 @@ void *Mod_LoadAliasFrame (void *pin, aliashdr_t *pheader, const int index)
 
 	pdaliasframe = (daliasframe_t *)pin;
 
-	strcpy (frame->name, pdaliasframe->name);
+	q_strlcpy (frame->name, pdaliasframe->name, sizeof (frame->name));
 	frame->firstpose = posenum;
 	frame->numposes = 1;