testsuite: Fix up test directive syntax errors

testsuite: Fix up test directive syntax errors

I've noticed
+ERROR: gcc.dg/gomp/pr87887-1.c: syntax error in target selector ".-4" for " dg-warning 13 "unsupported return type ‘struct S’ for ‘simd’ functions" { target aarch64*-*-* } .-4 "
+ERROR: gcc.dg/gomp/pr87887-1.c: syntax error in target selector ".-4" for " dg-warning 13 "unsupported return type ‘struct S’ for ‘simd’ functions" { target aarch64*-*-* } .-4 "
+ERROR: gcc.dg/gomp/pr89246-1.c: syntax error in target selector ".-4" for " dg-warning 11 "unsupported argument type ‘__int128’ for ‘simd’ functions" { target aarch64*-*-* } .-4 "
+ERROR: gcc.dg/gomp/pr89246-1.c: syntax error in target selector ".-4" for " dg-warning 11 "unsupported argument type ‘__int128’ for ‘simd’ functions" { target aarch64*-*-* } .-4 "
+ERROR: gcc.dg/gomp/simd-clones-2.c: unmatched open quote in list for " dg-final 19 { scan-tree-dump "_ZGVnN2ua32vl_setArray" "optimized { target aarch64*-*-* } } "
+ERROR: gcc.dg/gomp/simd-clones-2.c: unmatched open quote in list for " dg-final 19 { scan-tree-dump "_ZGVnN2ua32vl_setArray" "optimized { target aarch64*-*-* } } "
regressions.  The following patch fixes those.

2023-12-12  Jakub Jelinek  <jakub@redhat.com>

	* gcc.dg/gomp/pr87887-1.c: Add missing comment argument to dg-warning.
	* gcc.dg/gomp/pr89246-1.c: Likewise.
	* gcc.dg/gomp/simd-clones-2.c: Add missing " after dump name.