Use gcc function attribute `format' to catch bad format strings. Fix

them.  From Marc Olzheim.
Type modifier 'l' was missing in many places, probably rendering the
server useless on 64-bit hosts.
(ef_flush, ef_write, ef_extend, lwpCreate, lwpDestroy): Use conversion
specifier 'p' to print pointers.
(check_market): Fix display of loan amount.
(doland): Fix unescaped '%' (undefined behavior).
(ldump, ndump, pdump, sdump): Don't use flag '0' with conversion
specifier 's' (undefined behavior).
(dump, ldump, lost, ndump, pdump, sdump, empth_create, update_sched):
Cast time_t and pthread_t to long for printing.
(lwpStackCheck, lwpStackCheckUsed, finish_sects): Insert cast to fix
argument type on all platforms.
(prod): Remove extra argument.
(perform_mission, airdamage, retreat_land1, lwpReschedule): Format
string missed arguments.

src/lib/subs/caploss.c

@@ -91,7 +91,7 @@ caploss(struct sctstr *sp, natid coun, s_char *msg)
 	player->dolcost -= gain;
     } else
 	gain = 0;
-    wu(0, coun, "You lost $%d and they gained $%d\n", lose, gain);
+    wu(0, coun, "You lost $%ld and they gained $%ld\n", lose, gain);
     wu(0, coun,
        "Your capital has been moved to %s. You must use 'capital' to reset it.\n",
        xyas(natp->nat_xcap, natp->nat_ycap, coun));