libbacktrace: update to current libgo test file

	* ztest.c (test_large): Update file to current libgo test file.

libbacktrace/ChangeLog

+2020-02-15  Ian Lance Taylor  <iant@golang.org>
+
+	* ztest.c (test_large): Update file to current libgo test file.
+
 2020-02-03  Ian Lance Taylor  <iant@golang.org>
 
 	* Makefile.am (libbacktrace_TEST_CFLAGS): Define.

libbacktrace/ztest.c

@@ -315,8 +315,8 @@ test_large (struct backtrace_state *state)
   size_t ctimes[16];
   size_t ztimes[16];
   static const char * const names[] = {
-    "Mark.Twain-Tom.Sawyer.txt",
-    "../libgo/go/compress/testdata/Mark.Twain-Tom.Sawyer.txt"
+    "Isaac.Newton-Opticks.txt",
+    "../libgo/go/testdata/Isaac.Newton-Opticks.txt",
   };
 
   orig_buf = NULL;