Redis [BUG] "make test" fails with [exception]: Executing test client: wrong # args: should be "close channelId".

VERSION: 6.0.6 DESCRIPTION: Post-build automated testing fails with error. REPRODUCTION: run make test EXPECTATION: Success.

I've performed fresh, clean builds on three different macOS systems: two High Sierra, one Mojave. The results on each are the same. Building is successful; however, make test fails identically for each system.

. . .
[ok]: XADD with MAXLEN > xlen can propagate correctly
[ok]: Connect multiple replicas at the same time (issue #141), master diskless=yes, replica diskless=disabled
[ok]: pending querybuf: check size of pending_querybuf after set a big value
[ok]: Check for memory leaks (pid 12040)
[ok]: XADD with ~ MAXLEN can propagate correctly
[ok]: Check for memory leaks (pid 11306)

Logged warnings (pid 9472):
(none)

[exception]: Executing test client: wrong # args: should be "close channelId".
wrong # args: should be "close channelId"
    while executing
"close $fd write"
    ("uplevel" body line 20)
    invoked from within
"uplevel 1 $code"
    (procedure "test" line 47)
    invoked from within
"test "Non-interactive non-TTY CLI: $name" $code"
    (procedure "test_nontty_cli" line 2)
    invoked from within
"test_nontty_cli "Piping raw protocol" {
        set fd [open_cli "--pipe"]
        fconfigure $fd -blocking true

        # Create a new deferring cli..."
    ("uplevel" body line 259)
    invoked from within
"uplevel 1 $code "
    (procedure "start_server" line 3)
    invoked from within
"start_server {tags {"cli"}} {
    proc open_cli {{opts "-n 9"}} {
        set ::env(TERM) dumb
        set cmdline [rediscli [srv port] $opts]
       ..."
    (file "tests/integration/redis-cli.tcl" line 3)
    invoked from within
"source $path"
    (procedure "execute_test_file" line 4)
    invoked from within
"execute_test_file $data"
    (procedure "test_client_main" line 10)
    invoked from within
"test_client_main $::test_server_port "
Killing still running Redis server 8840
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Killing still running Redis server 11306
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make[1]: *** [test] Error 1
make: *** [test] Error 2
$ 

Comment From: yossigo

@LiamFry Thanks for this report! This has been fixed in #7548, and you can work around it if you use TCL 8.6.