Added -q flag to ignore errors.

dumpstate calls showmap for each pid, and since most of them are empty,
it ends up polluting logcat with entries like:

03-17 14:49:05.974 12160 12160 E dumpstate: command '/system/xbin/su
root showmap -q 9867' failed: No such file or directory

BUG: 26906985
Change-Id: I18d86adefe3f4b248f672732460d1145103e5828
1 file changed