REORG: include: move sample.h to haproxy/sample{,-t}.h
This one is particularly tricky to move because everyone uses it
and it depends on a lot of other types. For example it cannot include
arg-t.h and must absolutely only rely on forward declarations to avoid
dependency loops between vars -> sample_data -> arg. In order to address
this one, it would be nice to split the sample_data part out of sample.h.
diff --git a/contrib/prometheus-exporter/service-prometheus.c b/contrib/prometheus-exporter/service-prometheus.c
index cdced56..fa36aa7 100644
--- a/contrib/prometheus-exporter/service-prometheus.c
+++ b/contrib/prometheus-exporter/service-prometheus.c
@@ -31,7 +31,7 @@
#include <haproxy/compression.h>
#include <haproxy/pipe.h>
#include <proto/proxy.h>
-#include <proto/sample.h>
+#include <haproxy/sample.h>
#include <proto/server.h>
#include <proto/ssl_sock.h>
#include <proto/stats.h>