Fix host tests.

The regex being overspecified meant that host tests were not properly
replacing the dummy.o when linking, meaning all of the tests that were
running were running nothing but `int main() {}`.

The good news is that there weren't any failing tests hiding behind
this on Linux.

Change-Id: I9bea82ff1fefdf156d68a58689e532807c8d999b

buildcmds/buildcmdscc

@@ -9,7 +9,7 @@ if [ $? -eq 0 ]; then
   echo $ARGS | perl -ne 's/\S+\.cpp\b/%SOURCE%/; print' \
              | perl -ne 's/\S+\.o\b/%OUT%/; print' > $DIR/cxx.cmds
 else
-  echo $ARGS | perl -ne 's/out\/target\/product\/\S+\/EXECUTABLES\/\S+\.o\b/%SOURCE%/; print' \
+  echo $ARGS | perl -ne 's/out\/\S+\/EXECUTABLES\/\S+\.o\b/%SOURCE%/; print' \
              | perl -ne 's/-o\s+\S+\b/-o %OUT%/; print' > $DIR/link.cmds
 fi