selftests: mptcp: connect: remove duplicated spaces in TAP output

It is nice to have a visual alignment in the test output to present the
different results, but it makes less sense in the TAP output that is
there for computers.

It sounds then better to remove the duplicated whitespaces in the TAP
output, also because it can cause some issues with TAP parsers expecting
only one space around the directive delimiter (#).

While at it, change the variable name (result_msg) to something more
explicit.
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240906-net-next-mptcp-ksft-subtest-time-v2-5-31d5ee4f3bdf@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

tools/testing/selftests/net/mptcp/mptcp_connect.sh

@@ -345,9 +345,11 @@ do_transfer()
 
 	local addr_port
 	addr_port=$(printf "%s:%d" ${connect_addr} ${port})
-	local result_msg
-	result_msg="$(printf "%.3s %-5s -> %.3s (%-20s) %-5s" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto})"
-	mptcp_lib_print_title "${result_msg}"
+	local pretty_title
+	pretty_title="$(printf "%.3s %-5s -> %.3s (%-20s) %-5s" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto})"
+	mptcp_lib_print_title "${pretty_title}"
+
+	local tap_title="${connector_ns:0:3} ${cl_proto} -> ${listener_ns:0:3} (${addr_port}) ${srv_proto}"
 
 	if $capture; then
 		local capuser
@@ -443,7 +445,7 @@ do_transfer()
 
 		echo
 		cat "$capout"
-		mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}"
+		mptcp_lib_result_fail "${TEST_GROUP}: ${tap_title}"
 		return 1
 	fi
 
@@ -543,12 +545,12 @@ do_transfer()
 
 	if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then
 		mptcp_lib_pr_ok "${extra:1}"
-		mptcp_lib_result_pass "${TEST_GROUP}: ${result_msg}"
+		mptcp_lib_result_pass "${TEST_GROUP}: ${tap_title}"
 	else
 		if [ -n "${extra}" ]; then
 			mptcp_lib_print_warn "${extra:1}"
 		fi
-		mptcp_lib_result_fail "${TEST_GROUP}: ${result_msg}"
+		mptcp_lib_result_fail "${TEST_GROUP}: ${tap_title}"
 	fi
 
 	cat "$capout"