Update object2.c

Author: mbaluda

c/misra/test/rules/RULE-8-4/object2.c

@@ -1,3 +1,4 @@
-short i3 = 0; // NON_COMPLIANT - not detected as `extern int i3` exists
+// not detected as `extern int i3` exists
+short i3 = 0; // NON_COMPLIANT[FALSE_NEGATIVE]
 
-signed int i4 = 0; // COMPLIANT
+signed int i4 = 0; // COMPLIANT