init: Make an error message more informative

Make it easier to diagnose service failures.

Bug: 213617178
Change-Id: I27135cb32b6a98b2fe24ab2324dffbf5b591fdd5
Signed-off-by: Bart Van Assche <bvanassche@google.com>
diff --git a/init/service.cpp b/init/service.cpp
index 34e8200..7e43061 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -286,7 +286,8 @@
     }
 
     if ((siginfo.si_code != CLD_EXITED || siginfo.si_status != 0) && on_failure_reboot_target_) {
-        LOG(ERROR) << "Service with 'reboot_on_failure' option failed, shutting down system.";
+        LOG(ERROR) << "Service " << name_
+                   << " has 'reboot_on_failure' option and failed, shutting down system.";
         trigger_shutdown(*on_failure_reboot_target_);
     }