[testsuite][arm] Add missing quotes to expected warning messages.

2019-08-21  Christophe Lyon  <christophe.lyon@linaro.org>

	* gcc.target/arm/cmse/cmse-9.c: Add quotes to expected
	warning messages.

From-SVN: r274793

gcc/testsuite/ChangeLog

+2019-08-21  Christophe Lyon  <christophe.lyon@linaro.org>
+
+	* gcc.target/arm/cmse/cmse-9.c: Add quotes to expected
+	warning messages.
+
 2019-08-21  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/prot9.adb, gnat.dg/prot9_gen.ads,

gcc/testsuite/gcc.target/arm/cmse/cmse-9.c

@@ -2,12 +2,12 @@
 /* { dg-skip-if "Testing exclusion of -mcmse" { arm-*-* } { "-mcmse" } { "" } }  */
 
 
-void __attribute__ ((cmse_nonsecure_call)) (*bar) (int); /* { dg-warning "attribute ignored without -mcmse option" } */
-typedef void __attribute__ ((cmse_nonsecure_call)) baz (int); /* { dg-warning "attribute ignored without -mcmse option" } */
+void __attribute__ ((cmse_nonsecure_call)) (*bar) (int); /* { dg-warning "attribute ignored without '-mcmse' option" } */
+typedef void __attribute__ ((cmse_nonsecure_call)) baz (int); /* { dg-warning "attribute ignored without '-mcmse' option" } */
 
 int __attribute__ ((cmse_nonsecure_entry))
 foo (int a, baz b)
-{ /* { dg-warning "attribute ignored without -mcmse option" } */
+{ /* { dg-warning "attribute ignored without '-mcmse' option" } */
   bar (a);
   b (a);
   return a + 1;