qemu-iotests: Filter out DOS line endings

This one makes it possible to run qemu-iotests on a Windows build using Wine
and get somewhat meaningful results.
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>

tests/qemu-iotests/common.filter

@@ -140,10 +140,16 @@ _filter_imgfmt()
     sed -e "s#$IMGFMT#IMGFMT#g"
 }
 
+# Removes \r from messages
+_filter_win32()
+{
+    sed -e 's/\r//g'
+}
+
 # sanitize qemu-io output
 _filter_qemu_io()
 {
-    sed -e "s/[0-9]* ops\; [0-9/:. sec]* ([0-9/.inf]* [EPTGMKiBbytes]*\/sec and [0-9/.inf]* ops\/sec)/X ops\; XX:XX:XX.X (XXX YYY\/sec and XXX ops\/sec)/"
+    _filter_win32 | sed -e "s/[0-9]* ops\; [0-9/:. sec]* ([0-9/.inf]* [EPTGMKiBbytes]*\/sec and [0-9/.inf]* ops\/sec)/X ops\; XX:XX:XX.X (XXX YYY\/sec and XXX ops\/sec)/"
 }
 
 # make sure this script returns success