Fix newlines in test-fixture

hcl/parser/test-fixtures/comment.hcl already contained CRLF line
endings.  Convert that to unix and remove the extra cariiage returns
from comment_crlf.hcl.

hcl/parser/test-fixtures/comment.hcl

@@ -1,15 +1,15 @@
-// Foo
+// Foo
-
+
-/* Bar */
+/* Bar */
-
+
-/*
+/*
-/*
+/*
-Baz
+Baz
-*/
+*/
-
+
-# Another
+# Another
-
+
-# Multiple
+# Multiple
-# Lines
+# Lines
-
+
-foo = "bar"
+foo = "bar"

hcl/parser/test-fixtures/comment_crlf.hcl

@@ -1,15 +1,15 @@
-// Foo
+// Foo
-
+
-/* Bar */
+/* Bar */
-
+
-/*
+/*
-/*
+/*
-Baz
+Baz
-*/
+*/
-
+
-# Another
+# Another
-
+
-# Multiple
+# Multiple
-# Lines
+# Lines
-
+
-foo = "bar"
+foo = "bar"