[PATCH] Clear LD_PRELOAD when forking external symbolizer.

[Alexander Potapenko]

================
Comment at: lib/sanitizer_common/sanitizer_symbolizer_linux.cc:120
@@ -102,2 +119,3 @@
       internal_close(fd);
+    UnsetEnvVar("LD_PRELOAD");
     execl(path_to_symbolizer, path_to_symbolizer, (char*)0);
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If LD_PRELOAD contains more than one library, you only need to remove yours, not unset LD_PRELOAD completely.


http://llvm-reviews.chandlerc.com/D704