Fix '#pragma acc acc [...]' typos

Small fix-up for r279627 (commit 519d7496beac32c26448c1d0eea176c90f543702)
"OpenACC 2.6 deep copy: C and C++ front-end parts".

	gcc/testsuite/
	* c-c++-common/goacc/mdc-1.c: Fix '#pragma acc acc [...]' typo.
	* c-c++-common/goacc/mdc-2.c: Likewise.
	* g++.dg/goacc/mdc.C: Likewise.
diff --git a/gcc/testsuite/c-c++-common/goacc/mdc-1.c b/gcc/testsuite/c-c++-common/goacc/mdc-1.c
index 337c1f7..c9ab7c2 100644
--- a/gcc/testsuite/c-c++-common/goacc/mdc-1.c
+++ b/gcc/testsuite/c-c++-common/goacc/mdc-1.c
@@ -30,7 +30,7 @@
     }
 
 #pragma acc enter data copyin(a)
-#pragma acc acc enter data attach(s.e)
+#pragma acc enter data attach(s.e)
 #pragma acc exit data detach(s.e)
 
 #pragma acc data attach(s.e)
@@ -49,6 +49,7 @@
 /* { dg-final { scan-tree-dump-times "pragma omp target oacc_enter_exit_data map.attach:a .bias: 0.." 1 "omplower" } } */
 /* { dg-final { scan-tree-dump-times "pragma omp target oacc_enter_exit_data map.detach:a .bias: 0.." 1 "omplower" } } */
 /* { dg-final { scan-tree-dump-times "pragma omp target oacc_enter_exit_data map.to:a .len: 8.." 1 "omplower" } } */
+/* { dg-final { scan-tree-dump-times "pragma omp target oacc_enter_exit_data map.attach:s.e .bias: 0.." 1 "omplower" } } */
 /* { dg-final { scan-tree-dump-times "pragma omp target oacc_enter_exit_data map.detach:s.e .bias: 0.." 1 "omplower" } } */
 /* { dg-final { scan-tree-dump-times "pragma omp target oacc_data map.attach:s.e .bias: 0.." 1 "omplower" } } */
 /* { dg-final { scan-tree-dump-times "pragma omp target oacc_enter_exit_data map.release:a .len: 8.." 1 "omplower" } } */
diff --git a/gcc/testsuite/c-c++-common/goacc/mdc-2.c b/gcc/testsuite/c-c++-common/goacc/mdc-2.c
index fae8667..df3ce54 100644
--- a/gcc/testsuite/c-c++-common/goacc/mdc-2.c
+++ b/gcc/testsuite/c-c++-common/goacc/mdc-2.c
@@ -39,7 +39,7 @@
 #pragma acc enter data attach(z[3]) /* { dg-error "expected pointer in .attach. clause" } */
 #pragma acc exit data detach(z[3]) /* { dg-error "expected pointer in .detach. clause" } */
 
-#pragma acc acc enter data attach(s.e)
+#pragma acc enter data attach(s.e)
 #pragma acc exit data detach(s.e) attach(z) /* { dg-error ".attach. is not valid for" } */
 
 #pragma acc data attach(s.e)
diff --git a/gcc/testsuite/g++.dg/goacc/mdc.C b/gcc/testsuite/g++.dg/goacc/mdc.C
index b3abab3..e8ba1cc 100644
--- a/gcc/testsuite/g++.dg/goacc/mdc.C
+++ b/gcc/testsuite/g++.dg/goacc/mdc.C
@@ -45,7 +45,7 @@
 #pragma acc enter data attach(rz[3]) /* { dg-error "expected pointer in .attach. clause" } */
 #pragma acc exit data detach(rz[3]) /* { dg-error "expected pointer in .detach. clause" } */
 
-#pragma acc acc enter data attach(rs.e)
+#pragma acc enter data attach(rs.e)
 #pragma acc exit data detach(rs.e) attach(rz) /* { dg-error ".attach. is not valid for" } */
 
 #pragma acc data attach(rs.e)