starvation killer message

Write "died of starvation" on the tombstone, not just "starvation".
Suggested by <Someone> a couple weeks ago, although his suggested
prefix was different and didn't work as well for the "exhaustion" case.

doc/fixes34.2

@@ -66,6 +66,7 @@ make killer reason for various poisioning deaths be more consistent
 poison missiles were unintentionally more likely to inflict "deadly poison"
 	than in pre-3.4.1 releases
 provide feedback when going invisible after eating a stalker
+killer on tombstone had no prefix for starvation/exhaustion case
 
 
 Platform- and/or Interface-Specific Fixes

src/topten.c

@@ -77,7 +77,7 @@ STATIC_DCL void FDECL(nsb_unmung_line,(char*));
 
 /* must fit with end.c; used in rip.c */
 NEARDATA const char * const killed_by_prefix[] = {
-	"killed by ", "choked on ", "poisoned by ", "", "drowned in ",
+	"killed by ", "choked on ", "poisoned by ", "died of ", "drowned in ",
 	"burned by ", "dissolved in ", "crushed to death by ", "petrified by ",
 	"turned to slime by ", "killed by ", "", "", "", "", ""
 };