ASan: Run with verify_asan_link_order=0.

Avoids error message:
  ASan runtime does not come first in initial library list; you should either link runtime to your application or manually preload it with LD_PRELOAD.

Affected tests:
  nested_detach
  nested_detach_kill
  nested_detach_kill_stuck
  nested_detach_wait

src/main.cc

@@ -234,6 +234,13 @@ size_t saved_argv0_space() {
 using namespace rr;
 
 int main(int argc, char* argv[]) {
+
+#ifdef __SANITIZE_ADDRESS__
+  if (getenv("ASAN_OPTIONS") == NULL) {
+    setenv("ASAN_OPTIONS", "verify_asan_link_order=0", 1);
+  }
+#endif
+
   rr::saved_argv0_ = argv[0];
   rr::saved_argv0_space_ = argv[argc - 1] + strlen(argv[argc - 1]) + 1 - rr::saved_argv0_;