gcc.dg/debug/dwarf2/discriminator.c fixes

	* gcc.dg/debug/dwarf2/discriminator.c: Fix wording.
	Revert to dg-options.

From-SVN: r199809

gcc/testsuite/ChangeLog

+2013-06-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* gcc.dg/debug/dwarf2/discriminator.c: Fix wording.
+	Revert to dg-options.
+
 2013-06-07  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 
 	PR target/55033

gcc/testsuite/gcc.dg/debug/dwarf2/discriminator.c

 /* HAVE_AS_DWARF2_DEBUG_LINE macro needs to be defined to pass the unittest.
-   However, there dg cannot defin it as, so we restrict the target to linux.  */
+   However, dg cannot access it, so we restrict the target to linux.  */
 /* { dg-do compile { target *-*-linux-gnu } } */
-/* { dg-additional-options "-O0" } */
+/* { dg-options "-O0 -gdwarf-2" } */
 /* { dg-final { scan-assembler "loc \[0-9] 11 \[0-9]( is_stmt \[0-9])?\n" } } */
 /* { dg-final { scan-assembler "loc \[0-9] 11 \[0-9]( is_stmt \[0-9])? discriminator 2\n" } } */
 /* { dg-final { scan-assembler "loc \[0-9] 11 \[0-9]( is_stmt \[0-9])? discriminator 1\n" } } */