libbacktrace patch committed: Update test file

[Ian Lance Taylor]

This libbacktrace patch updates the test file used for comparisons
with zlib.  The file that the test was previously using, from libgo,
no longer exists.  Use its replacement file instead.  Bootstrapped and
ran libbacktrace tests on x86_64-pc-linux-gnu.  Committed to mainline.

Ian

2020-02-15  Ian Lance Taylor  <i...@golang.org>

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

diff --git a/libbacktrace/ztest.c b/libbacktrace/ztest.c
index 40f9c389a2a..2663c90061a 100644
--- a/libbacktrace/ztest.c
+++ b/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;