S/390: Fix setmem-long test.

Adding a " in the scan-assembler pattern is necessary because of a
recent change in print-rtl.c.

gcc/testsuite/ChangeLog:

2016-12-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>

	* gcc.target/s390/md/setmem_long-1.c: Fix test.

From-SVN: r243176

gcc/testsuite/ChangeLog

+2016-12-02  Dominik Vogt  <vogt@linux.vnet.ibm.com>
+
+	* gcc.target/s390/md/setmem_long-1.c: Fix test.
+
 2016-12-02  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/78547

gcc/testsuite/gcc.target/s390/md/setmem_long-1.c

@@ -16,8 +16,8 @@ void test2(char *p, int c, int len)
 }
 
 /* Check that the right patterns are used.  */
-/* { dg-final { scan-assembler-times {c:9 .*{[*]setmem_long_?3?1?z?}} 1 } } */
-/* { dg-final { scan-assembler-times {c:15 .*{[*]setmem_long_and_?3?1?z?}} 1 { xfail *-*-* } } } */
+/* { dg-final { scan-assembler-times {c"?:9 .*{[*]setmem_long_?3?1?z?}} 1 } } */
+/* { dg-final { scan-assembler-times {c"?:15 .*{[*]setmem_long_and_?3?1?z?}} 1 { xfail *-*-* } } } */
 
 #define LEN 500
 char buf[LEN + 2];