bitbake: ui/taskexp: Fix to work with empty build directories

If run on an empty build directory, taskexp wasn't working as it didn't
send the current environment to the server. This means HOSTTOOLS in oe-core
couldn't be built and gave an error. Add the missing updateToServer call in.

[YOCTO #14408]

(Bitbake rev: 06a0bbe746f879ae539223e7fdb6f07d55d13719)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/taskexp.py

@@ -197,6 +197,7 @@ def main(server, eventHandler, params):
     gtkgui.start()
 
     try:
+        params.updateToServer(server, os.environ.copy())
         params.updateFromServer(server)
         cmdline = params.parseActions()
         if not cmdline: