REGTEST: fix scripts 1 and 3 to accept development version

These scripts were checking that the program's name was exactly "haproxy"
which clearly is not workable during development.
diff --git a/reg-tests/lua/b00003.vtc b/reg-tests/lua/b00003.vtc
index c43381a..3f06b90 100644
--- a/reg-tests/lua/b00003.vtc
+++ b/reg-tests/lua/b00003.vtc
@@ -19,7 +19,7 @@
 
 syslog Slog -level info -repeat 100 {
     recv info
-    expect ~ "haproxy\\[${h1_pid}\\]: Ta=[0-9]* Tc=[0-9]* Td=-1 Th=[0-9]* Ti=[0-9]* Tq=[0-9]* TR=[0-9] Tr=-1 Tt=[0-9]* Tw=[0-9]*"
+    expect ~ "[^:\\[ ]\\[${h1_pid}\\]: Ta=[0-9]* Tc=[0-9]* Td=-1 Th=[0-9]* Ti=[0-9]* Tq=[0-9]* TR=[0-9] Tr=-1 Tt=[0-9]* Tw=[0-9]*"
 } -start
 
 haproxy h1 -conf {