Fix file paths for DumpstateUtil calls in 1.0

selinux prevents access to /vendor/bin/date and
/system/etc/hosts.

Bug: 152067221
Test: presubmit
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I6202878427718bc825063941377c3e91b798677f
diff --git a/dumpstate/1.0/default/DumpstateDevice.cpp b/dumpstate/1.0/default/DumpstateDevice.cpp
index c57bf43..e3c2e0b 100644
--- a/dumpstate/1.0/default/DumpstateDevice.cpp
+++ b/dumpstate/1.0/default/DumpstateDevice.cpp
@@ -51,9 +51,8 @@
     ALOGI("Dumpstate HIDL not provided by device\n");
     dprintf(fd, "Dumpstate HIDL not provided by device; providing bogus data.\n");
 
-    // Shows some examples on how to use the libdumpstateutil API.
-    RunCommandToFd(fd, "DATE", {"/vendor/bin/date"});
-    DumpFileToFd(fd, "HOSTS", "/system/etc/hosts");
+    // Shows an example on how to use the libdumpstateutil API.
+    DumpFileToFd(fd, "cmdline", "/proc/self/cmdline");
 
     return Void();
 }