REGTESTS: checks: make 4be_1srv_health_checks more reliable

This test occasionally fails on the Travis CI tests because the
"in progress" bit is sometimes still set (or set again) in the show
servers state output and is not expected in all regexes (some do
already cover it), like in this one :

   https://travis-ci.com/haproxy/haproxy/jobs/221324920

Let's extend the remaining ones to accept this as well. Other tests
do not seem affected as they only expect sequences of digits there.
diff --git a/reg-tests/checks/4be_1srv_health_checks.vtc b/reg-tests/checks/4be_1srv_health_checks.vtc
index a9b3a81..e27f4b4 100644
--- a/reg-tests/checks/4be_1srv_health_checks.vtc
+++ b/reg-tests/checks/4be_1srv_health_checks.vtc
@@ -147,7 +147,7 @@
 haproxy h1 -cli {
     barrier b1 sync
     send "show servers state"
-    expect ~ "# be_id be_name srv_id srv_name srv_addr srv_op_state srv_admin_state srv_uweight srv_iweight srv_time_since_last_change srv_check_status srv_check_result srv_check_health srv_check_state srv_agent_state bk_f_forced_id srv_f_forced_id srv_fqdn srv_port srvrecord\n6 be1 1 srv1 ${s1_addr} 2 0 1 1 [[:digit:]]+ 6 3 1 6 0 0 0 - ${s1_port} -\n7 be2 1 srv2 ${s2_addr} 2 0 1 1 [[:digit:]]+ 6 3 1 6 0 0 0 - ${s2_port} -\n8 be3 1 srv3 ${s3_addr} 2 0 1 1 [[:digit:]]+ 6 3 1 6 0 0 0 - ${s3_port} -\n9 be4 1 srv4 ${s4_addr} 2 0 1 1 [[:digit:]]+ 6 3 1 6 0 0 0 - ${s4_port} -"
+    expect ~ "# be_id be_name srv_id srv_name srv_addr srv_op_state srv_admin_state srv_uweight srv_iweight srv_time_since_last_change srv_check_status srv_check_result srv_check_health srv_check_state srv_agent_state bk_f_forced_id srv_f_forced_id srv_fqdn srv_port srvrecord\n6 be1 1 srv1 ${s1_addr} 2 0 1 1 [[:digit:]]+ 6 3 1 [67] 0 0 0 - ${s1_port} -\n7 be2 1 srv2 ${s2_addr} 2 0 1 1 [[:digit:]]+ 6 3 1 [67] 0 0 0 - ${s2_port} -\n8 be3 1 srv3 ${s3_addr} 2 0 1 1 [[:digit:]]+ 6 3 1 [67] 0 0 0 - ${s3_port} -\n9 be4 1 srv4 ${s4_addr} 2 0 1 1 [[:digit:]]+ 6 3 1 [67] 0 0 0 - ${s4_port} -"
 }
 
 haproxy h1 -cli {
@@ -173,7 +173,7 @@
 haproxy h1 -cli {
     barrier b1 sync
     send "show servers state"
-    expect ~ "# be_id be_name srv_id srv_name srv_addr srv_op_state srv_admin_state srv_uweight srv_iweight srv_time_since_last_change srv_check_status srv_check_result srv_check_health srv_check_state srv_agent_state bk_f_forced_id srv_f_forced_id srv_fqdn srv_port srvrecord\n6 be1 1 srv1 ${s1_addr} 0 1 1 1 [[:digit:]]+ 6 3 [01] 14 0 0 0 - ${s1_port} -\n7 be2 1 srv2 ${s2_addr} 0 1 1 1 [[:digit:]]+ 6 3 [01] 14 0 0 0 - ${s2_port} -\n8 be3 1 srv3 ${s3_addr} 0 1 1 1 [[:digit:]]+ 6 3 [01] 14 0 0 0 - ${s3_port} -\n9 be4 1 srv4 ${s4_addr} 0 1 1 1 [[:digit:]]+ 6 3 [01] 14 0 0 0 - ${s4_port} -"
+    expect ~ "# be_id be_name srv_id srv_name srv_addr srv_op_state srv_admin_state srv_uweight srv_iweight srv_time_since_last_change srv_check_status srv_check_result srv_check_health srv_check_state srv_agent_state bk_f_forced_id srv_f_forced_id srv_fqdn srv_port srvrecord\n6 be1 1 srv1 ${s1_addr} 0 1 1 1 [[:digit:]]+ 6 3 [01] 1[45] 0 0 0 - ${s1_port} -\n7 be2 1 srv2 ${s2_addr} 0 1 1 1 [[:digit:]]+ 6 3 [01] 1[45] 0 0 0 - ${s2_port} -\n8 be3 1 srv3 ${s3_addr} 0 1 1 1 [[:digit:]]+ 6 3 [01] 1[45] 0 0 0 - ${s3_port} -\n9 be4 1 srv4 ${s4_addr} 0 1 1 1 [[:digit:]]+ 6 3 [01] 1[45] 0 0 0 - ${s4_port} -"
 }
 
 haproxy h1 -cli {