debuggerd: store commandline instead of process name.

Bug: http://b/180605583
Test: debuggerd_test
Change-Id: I018d399a5460f357766dc1b429f645f78fe88565
diff --git a/debuggerd/proto/tombstone.proto b/debuggerd/proto/tombstone.proto
index dd15ff6..294e4e5 100644
--- a/debuggerd/proto/tombstone.proto
+++ b/debuggerd/proto/tombstone.proto
@@ -17,7 +17,7 @@
   uint32 uid = 7;
   string selinux_label = 8;
 
-  string process_name = 9;
+  repeated string command_line = 9;
 
   // Process uptime in seconds.
   uint32 process_uptime = 20;