Log Message:
sysutils/broot: update to 1.6.0

-{root} argument (current tree root) can be used in verb patterns - Fix #395
-working_dir verb attribute - Fix #396
-client-server mode fixed, no longer feature-gated (but still only available on
unix like systems)
-broot tries to keep same selection on option changes
-:tree_up and :tree_down internals, mapped to ctrl-up and ctrl-down - Fix #399
-better handling of auto color mode: two separate behaviors: for app running
and for export when leaving - Fix #397
-remove the deprecated --no-style launch argument (use --color no instead)
-deprecate the --out argument (redirecting the output is the recommanded
solution)
-fix a few minor bugs