more angry god vs pacifist conduct

Do it properly, using the arguments to xkilled() instead of reversing
the conduct counter after the fact.

The xkilled() flag value of '1' has been reversed.  It used to mean
'display message' but now means 'suppress message' since both of the
other flag bits are for suppression.  All callers have been updated
to specify either XKILL_GIVEMSG or XKILL_NOMSG so the underlying
number remains transparent.

src/apply.c

@@ -737,7 +737,7 @@ register xchar x, y;
                        that's the result of his actions; gain experience,
                        lose pacifism, take alignment and luck hit, make
                        corpse less likely to remain tame after revival */
-                    xkilled(mtmp, 0); /* no "you kill it" message */
+                    xkilled(mtmp, XKILL_NOMSG);
                     /* life-saving doesn't ordinarily reset this */
                     if (mtmp->mhp > 0)
                         u.uconduct.killer = save_pacifism;