Fix brokenness in top on big-endian 32-bit systems introduced when

changing format_k2 to take a long long. Because itoa is defined as a K&R
C function, without prototyping its arguments, format_k2 passed a 64-bit
value, but itoa() received only the first word, showing '0' in all memory
fields.

contrib/top/utils.c

@@ -499,7 +499,7 @@ unsigned long long amt;
 	}
     }
 
-    p = strecpy(p, itoa(amt));
+    p = strecpy(p, itoa((int)amt));
     *p++ = tag;
     *p = '\0';