Updated msys2 to msys2-base-x86_64-20200903

msys2/usr/share/bash-completion/completions/killall

@@ -8,14 +8,14 @@ _killall()
     _init_completion -s || return
 
     case $prev in
-        -Z|--context|-o|--older-than|-y|--younger-than|-V|--version)
+        --context|--older-than|--younger-than|--version|-!(-*)@([Zoy]|V*))
             return
             ;;
-        -s|--signal)
+        --signal|-!(-*)s)
             _signals
             return
             ;;
-        -u|--user)
+        --user|-!(-*)u)
             _allowed_users
             return
             ;;
@@ -24,7 +24,7 @@ _killall()
     $split && return
 
     if [[ $cur == -* ]]; then
-        COMPREPLY=( $( compgen -W '$( _parse_help "$1" )' -- "$cur" ) )
+        COMPREPLY=( $(compgen -W '$(_parse_help "$1")' -- "$cur") )
         [[ $cword -eq 1 ]] && _signals -
         return
     fi