Skip connection-timeout test on minix3.

Minix 3's Unix domain sockets don't seem to work the way we expect, so
skip connection-timeout test on that platform.  While there, group
together all similarly skipped tests and explicitly comment.

diff --git a/.github/configs b/.github/configs
index badee4a932f9413849a11431b8c98e9546cb575f..bdd5ddbdfaf0297555c0c9c68ff83fcfa6cf82fe 100755 (executable)
--- a/.github/configs
+++ b/.github/configs
@@ -246,12 +246,14 @@ case "${TARGET_HOST}" in
        # Also, Minix seems to be very limited in the number of select()
        # calls that can be operating concurrently, so prune additional tests for that.
        T="addrmatch agent-restrict brokenkeys cfgmatch cfgmatchlisten cfgparse
-           connect connect-uri dynamic-forward
-           exit-status forward-control forwarding hostkey-agent
-           key-options keyscan knownhosts-command login-timeout multiplex
+           connect connect-uri exit-status forwarding hostkey-agent
+           key-options keyscan knownhosts-command login-timeout
            reconfigure reexec rekey scp scp-uri scp3 sftp sftp-badcmds
            sftp-batch sftp-cmds sftp-glob sftp-perm sftp-uri stderr-data
            transfer"
+       # Unix domain sockets don't work quite like we expect, so also skip any tests
+       # that use multiplexing.
+       T="$T connection-timeout dynamic-forward forward-control multiplex"
        SKIP_LTESTS="$(echo $T)"
        TEST_TARGET=t-exec
        SUDO=""