PR testsuite/92016 - Excess errors in Wstringop-overflow-17.c

gcc/testsuite/ChangeLog:
	* gcc.dg/Wstringop-overflow-17.c: Expect an additional warning.

From-SVN: r277008

gcc/testsuite/ChangeLog

+2019-10-15  Martin Sebor  <msebor@redhat.com>
+
+	PR testsuite/92016
+	* gcc.dg/Wstringop-overflow-17.c: Expect an additional warning.
+
 2019-10-15  Bill Schmidt  <wschmidt@linux.ibm.com>
 
 	PR target/92093

gcc/testsuite/gcc.dg/Wstringop-overflow-17.c

 /* Test to verify that -Wstringop-overflow mentions the referenced object
-   i.
    { dg-do compile }
    { dg-options "-O2 -Wall" } */
 
 static void copy_n (char *d, const char *s, int n)
 {
   while (n--)
-    *d++ = *s++;
+    *d++ = *s++;    // { dg-warning "writing 1 byte into a region of size 0" }
   *d = 0;           // { dg-warning "writing 1 byte into a region of size 0" }
 }