Another place where malloc is expected to return zero'ed storage.

(Found with phkmalloc/2 (TNG!) send me email if you want a copy.)

usr.bin/tn3270/tools/mkhits/dohits.c

@@ -101,6 +101,7 @@ int value;
 
     item = &firstentry(second);
     this = (struct thing *) malloc(sizeof *this);
+    memset((void*)this,0,sizeof *this);
     this->next = *item;
     *item = this;
     this->value = value;