scripts: Tweaked corrupt rbyd coloring to include addresses

This matches the coloring in dbglfs.py for other erroneous conditions,
and also matches how we color hidden items when shown.

Also fixed some minor bugs in grm printing.

scripts/dbgbtree.py

@@ -1803,10 +1803,10 @@ def main(disk, roots=None, *,
             # corrupted? try to keep printing the tree
             if not rbyd:
                 if not quiet:
-                    print('%04x.%04x: %*s%s%s%s' % (
+                    print('%s%04x.%04x: %*s%s%s' % (
+                            '\x1b[31m' if color else '',
                             rbyd.block, rbyd.trunk,
                             t_width, '',
-                            '\x1b[31m' if color else '',
                             '(corrupted rbyd %s)' % rbyd.addr(),
                             '\x1b[m' if color else ''))
                 prbyd = None