Ignore -tracing in compiledump

We get dumps with this flag set, but don't support it

Change-Id: Ibaa4244ee52d0654aeac73a0c5e328dbb797782b
diff --git a/tools/compiledump.py b/tools/compiledump.py
index 3abe651..cc12d2a 100755
--- a/tools/compiledump.py
+++ b/tools/compiledump.py
@@ -477,7 +477,7 @@
     if line.lstrip().startswith('#'):
         return False
     if ('-injars' in line or '-libraryjars' in line or '-print' in line or
-            '-applymapping' in line):
+            '-applymapping' in line or '-tracing' in line):
         return True
     if minify == 'force-enable' and '-dontobfuscate' in line:
         return True