PATCH: update screen completion

[Oliver Kiddle <okiddle@yahoo.co.uk>]

GNU screen has new -4 and -6 options and there was one description
spelling mistake. This is up-to-date through version 4.06.01

Oliver

diff --git a/Completion/Unix/Command/_screen b/Completion/Unix/Command/_screen
index 862da7544..6d47d2638 100644
--- a/Completion/Unix/Command/_screen
+++ b/Completion/Unix/Command/_screen
@@ -56,6 +56,8 @@ scr_cmds=(
 )
 
 _arguments -C \
+  '(-6)-4[resolve hostnames only to IPv4 addresses]' \
+  '(-4)-4[resolve hostnames only to IPv6 addresses]' \
   "-a[force all capabilities into each window's termcap]" \
   '-A[adapt all windows to the new display width & height]' \
   "-c[read configuration file instead of '.screenrc']:config file:_files" \
@@ -75,7 +77,7 @@ _arguments -C \
   '-O[choose optimal output rather than exact vt100 emulation]' \
   '-p[preselect the named window]:window number or name:((\=\:windowlist -\:blank\ window \:window\ number))' \
   '-q[quiet startup, exit with non-zero return code if unsuccessful]' \
-  '-Q[send response to stdout of command qwery process]:screen command:(echo info lastmsg number select time title windows)' \
+  '-Q[send response to stdout of command query process]:screen command:(echo info lastmsg number select time title windows)' \
   '-r[reattach to a detached screen process]: :->detached-sessions' \
   '-Dr: :->any-sessions' \
   '-dr: :->any-sessions' \