thread1.C: Tweak expected error #line 13 to cover target variance.

2019-01-08  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/diagnostic/thread1.C: Tweak expected error #line 13 to
	cover target variance.

From-SVN: r267722

gcc/testsuite/ChangeLog

+2019-01-08  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	* g++.dg/diagnostic/thread1.C: Tweak expected error #line 13 to
+	cover target variance.
+
 2019-01-08  Richard Biener  <rguenther@suse.de>
 
 	PR fortran/88611

gcc/testsuite/g++.dg/diagnostic/thread1.C

@@ -10,4 +10,4 @@ struct S
   ~S();
 };
 
-__thread S s __attribute__((unused));  // { dg-error "12:non-local variable .s. declared .__thread. has" }
+__thread S s __attribute__((unused));  // { dg-error "12:non-local variable .s. declared .__thread." }