messages.ignore match any number of spaces in recent dackka messages
messages.ignore match any number of spaces in recent dackka messages

it appears that Dackka generates differently-indented messages under different circumstances, possibly based on the number of digits present in other messages

Bug: 184355075
Test: Download gradle.log from build 7279163 , 7279249, 7279492 , and 7279636, and for each one, run `./development/build_log_simplifier.py --validate gradle.log`

Change-Id: I64968770f06b8b56a0bfcac72c3da3985d1ba454

androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx